diff --git a/.gitignore b/.gitignore
index 3f584e2..54fb986 100644
--- a/.gitignore
+++ b/.gitignore
@@ -222,7 +222,6 @@
 /lib/erl/test/*.beam
 /lib/erl/test/*.hrl
 /lib/erl/test/Thrift_omit_without.thrift
-/lib/erl/rebar.lock
 /lib/haxe/test/bin
 /lib/haxe/test/data.tmp
 /lib/hs/dist
@@ -323,6 +322,8 @@
 /test/erl/.generated
 /test/erl/.rebar
 /test/erl/ebin
+/test/erl/_build/
+/test/erl/rebar.lock
 /test/go/bin/
 /test/go/ThriftTest.thrift
 /test/go/gopath
diff --git a/LANGUAGES.md b/LANGUAGES.md
index 5391fe1..59d5e53 100644
--- a/LANGUAGES.md
+++ b/LANGUAGES.md
@@ -72,7 +72,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/c_glib/README.md">C (glib)</a></td>
 <!-- Since -----------------><td>0.6.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
-<!-- Language Levels -------><td>2.48.2</td><td>2.56.0</td>
+<!-- Language Levels -------><td>2.48.2</td><td>2.56.4</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -105,7 +105,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/cl/README.md">Common LISP</a></td>
 <!-- Since -----------------><td>0.12.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td colspan=2>SBCL 1.4.x</td>
+<!-- Language Levels -------><td>SBCL 1.4.x</td><td>SBCL 1.5.3</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -116,7 +116,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/d/README.md">Dlang</a></td>
 <!-- Since -----------------><td>0.9.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>2.075.1</td><td>2.083.2</td>
+<!-- Language Levels -------><td>2.075.1</td><td>2.087.0</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
@@ -127,7 +127,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/dart/README.md">Dart</a></td>
 <!-- Since -----------------><td>0.10.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>1.24.3</td><td>2.x</td>
+<!-- Language Levels -------><td>2.0.0</td><td>2.4.0</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -171,7 +171,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/erl/README.md">Erlang</a></td>
 <!-- Since -----------------><td>0.3.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>18.3</td><td>20.0.4</td>
+<!-- Language Levels -------><td>18.3</td><td>22.0</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -182,7 +182,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/go/README.md">Go</a></td>
 <!-- Since -----------------><td>0.7.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>1.7.6</td><td>1.11.4</td>
+<!-- Language Levels -------><td>1.10.8</td><td>1.12.6</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -215,7 +215,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/java/README.md">Java (SE)</a></td>
 <!-- Since -----------------><td>0.2.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
-<!-- Language Levels -------><td>1.8.0_151</td><td>1.8.0_191</td>
+<!-- Language Levels -------><td>1.8.0_151</td><td>11.0.3</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -259,7 +259,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/nodejs/README.md">node.js</a></td>
 <!-- Since -----------------><td>0.6.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>6.x</td><td>8.x</td>
+<!-- Language Levels -------><td>6.x</td><td>10.x</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -303,7 +303,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/php/README.md">PHP</a></td>
 <!-- Since -----------------><td>0.2.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>7.0.22</td><td>7.2.10</td>
+<!-- Language Levels -------><td>7.0.22</td><td>7.2.19</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -314,7 +314,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/py/README.md">Python</a></td>
 <!-- Since -----------------><td>0.2.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
-<!-- Language Levels -------><td>2.7.12, 3.5.2</td><td>2.7.15rc1, 3.6.7</td>
+<!-- Language Levels -------><td>2.7.12, 3.5.2</td><td>2.7.15, 3.6.8</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -336,7 +336,7 @@
 <td align=left><a href="https://github.com/apache/thrift/blob/master/lib/rs/README.md">Rust</a></td>
 <!-- Since -----------------><td>0.11.0</td>
 <!-- Build Systems ---------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
-<!-- Language Levels -------><td>1.35.0</td><td>1.30.0</td>
+<!-- Language Levels -------><td>1.35.0</td><td>1.35.0</td>
 <!-- Low-Level Transports --><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Transport Wrappers ----><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cred.png" alt=""/></td>
 <!-- Protocols -------------><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
diff --git a/build/docker/README.md b/build/docker/README.md
index ce79985..7bbf001 100644
--- a/build/docker/README.md
+++ b/build/docker/README.md
@@ -167,31 +167,31 @@
 
 | Language  | ubuntu-xenial | ubuntu-bionic | Notes |
 | :-------- | :------------ | :------------ | :---- |
-| as of     | Mar 06, 2018  | Jan 21, 2019  |       |
+| as of     | Mar 06, 2018  | Jul 1, 2019   |       |
 | as3       |               | 4.6.0         |       |
-| C++ gcc   | 5.4.0         | 7.3.0         |       |
+| C++ gcc   | 5.4.0         | 7.4.0         |       |
 | C++ clang | 3.8           | 6.0           |       |
 | C# (mono) | 4.2.1.0       | 4.6.2.7       |       |
-| c_glib    | 2.48.2        | 2.56.0        |       |
-| cl (sbcl) |               | 1.4.15        |       |
-| d         | 2.075.1       | 2.083.1       |       |
-| dart      | 1.24.3        | 2.1.0         |       |
+| c_glib    | 2.48.2        | 2.56.4        |       |
+| cl (sbcl) |               | 1.5.3         |       |
+| d         | 2.075.1       | 2.087.0       |       |
+| dart      | 2.0.0         | 2.4.0         |       |
 | delphi    |               |               | Not in CI |
-| dotnet    | 2.1.503       | 2.2.103       |       |
-| erlang    | 18.3          | 20.2.2        |       |
-| go        | 1.7.6         | 1.11.4        |       |
+| dotnet    | 2.1.503       | 2.2.300       |       |
+| erlang    | 18.3          | 22.0          |       |
+| go        | 1.10.8        | 1.12.6        |       |
 | haskell   | 7.10.3        | 8.0.2         |       |
 | haxe      | 3.2.1         | 3.4.4         | THRIFT-4352: avoid 3.4.2 |
-| java      | 1.8.0_191     | 1.8.0_191     |       |
+| java      | 1.8.0_191     | 11.0.3        |       |
 | js        |               |               | Unsure how to look for version info? |
-| lua       | 5.2.4         | 5.2.4         | Lua 5.3: see THRIFT-4386 |
-| nodejs    | 6.16.0        | 8.15.0        |       |
+| lua       |               | 5.2.4         | Lua 5.3: see THRIFT-4386 |
+| nodejs    | 6.16.0        | 10.16.0       |       |
 | ocaml     |               | 4.05.0        | THRIFT-4517: ocaml 4.02.3 on xenial appears broken |
 | perl      | 5.22.1        | 5.26.1        |       |
-| php       | 7.0.32        | 7.2.10        |       |
-| python    | 2.7.12        | 2.7.15rc1     |       |
-| python3   | 3.5.2         | 3.6.7         |       |
+| php       | 7.0.32        | 7.2.19        |       |
+| python    | 2.7.12        | 2.7.15        |       |
+| python3   | 3.5.2         | 3.6.8         |       |
 | ruby      | 2.3.1p112     | 2.5.1p57      |       |
-| rust      | 1.35.0        | 1.35.0        |       |
+| rust      | 1.34.0        | 1.35.0        |       |
 | smalltalk |               |               | Not in CI |
 | swift     |               | 4.2.1         |       |
diff --git a/build/docker/ubuntu-bionic/Dockerfile b/build/docker/ubuntu-bionic/Dockerfile
index b508b1e..2c0609e 100644
--- a/build/docker/ubuntu-bionic/Dockerfile
+++ b/build/docker/ubuntu-bionic/Dockerfile
@@ -12,13 +12,7 @@
 
 #
 # Apache Thrift Docker build environment for Ubuntu Bionic
-# Using all stock Ubuntu Bionic packaging except for:
-# - cl: want latest
-# - d: dmd does not come with Ubuntu
-# - dart: does not come with Ubuntu - we use 2.x here
-# - dotnet: does not come with Ubuntu
-# - go: want latest
-# - nodejs: want v8, bionic comes with v6
+# with some updated packages.
 #
 
 FROM buildpack-deps:bionic-scm
@@ -38,10 +32,6 @@
       software-properties-common \
       wget
 
-# csharp (mono) - if we ever want a later version
-# RUN echo "deb http://download.mono-project.com/repo/debian xenial main" | tee /etc/apt/sources.list.d/mono.list && \
-#     apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A6A19B38D3D831EF
-
 # Dart
 RUN curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
     curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_stable.list > \
@@ -53,9 +43,13 @@
     chown root:root /etc/apt/trusted.gpg.d/microsoft.gpg && \
     chown root:root /etc/apt/sources.list.d/microsoft-prod.list
 
+# erlang
+RUN wget -O- https://packages.erlang-solutions.com/ubuntu/erlang_solutions.asc | apt-key add - && \
+    echo "deb https://packages.erlang-solutions.com/ubuntu bionic contrib" | tee /etc/apt/sources.list.d/erlang.list
+
 # node.js
 RUN curl -sL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
-    echo "deb https://deb.nodesource.com/node_8.x bionic main" | tee /etc/apt/sources.list.d/nodesource.list
+    echo "deb https://deb.nodesource.com/node_10.x bionic main" | tee /etc/apt/sources.list.d/nodesource.list
 
 ### install general dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -99,7 +93,7 @@
 `# csharp (mono) dependencies` \
       mono-devel
 
-ENV SBCL_VERSION 1.4.15
+ENV SBCL_VERSION 1.5.3
 RUN \
 `# Common Lisp (sbcl) dependencies` \
     curl --version && \
@@ -111,8 +105,8 @@
     cd .. && \
     rm -rf sbcl*
 
-ENV D_VERSION     2.083.1
-ENV DMD_DEB       dmd_2.083.1-0_amd64.deb
+ENV D_VERSION     2.087.0
+ENV DMD_DEB       dmd_2.087.0-0_amd64.deb
 RUN \
 `# D dependencies` \
     wget -q http://downloads.dlang.org/releases/2.x/${D_VERSION}/${DMD_DEB} && \
@@ -128,7 +122,7 @@
     mv deimos-openssl-1.1.0h/C/* /usr/include/dmd/druntime/import/C/ && \
     rm -rf deimos-openssl-1.1.0h
 
-ENV DART_VERSION 2.1.0-1
+ENV DART_VERSION 2.4.0-1
 RUN apt-get install -y --no-install-recommends \
       `# Dart dependencies` \
       dart=$DART_VERSION
@@ -140,20 +134,19 @@
 
 RUN apt-get install -y --no-install-recommends \
 `# Erlang dependencies` \
-      erlang-base \
-      erlang-eunit \
-      erlang-dev \
-      erlang-tools \
-      rebar
+      erlang && \
+    wget https://s3.amazonaws.com/rebar3/rebar3 -O /usr/bin/rebar3 && \
+    chmod 755 /usr/bin/rebar3 && \
+    rebar3 --version
 
 RUN apt-get install -y --no-install-recommends \
 `# GlibC dependencies` \
       libglib2.0-dev
 
 # golang
-ENV GOLANG_VERSION 1.12.1
+ENV GOLANG_VERSION 1.12.6
 ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
-ENV GOLANG_DOWNLOAD_SHA256 2a3fdabf665496a0db5f41ec6af7a9b15a49fbe71a85a50ca38b1f13a103aeec
+ENV GOLANG_DOWNLOAD_SHA256 dbcf71a3c1ea53b8d54ef1b48c85a39a6c9a935d01fc8291ff2b92028e59913c
 RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz && \
       echo "$GOLANG_DOWNLOAD_SHA256  golang.tar.gz" | sha256sum -c - && \
             tar -C /usr/local -xzf golang.tar.gz && \
@@ -258,6 +251,7 @@
 
 # Rust dependencies
 RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain 1.35.0 -y
+ENV PATH /root/.cargo/bin:$PATH
 
 # Swift on Linux for cross tests
 RUN cd / && \
diff --git a/build/docker/ubuntu-xenial/Dockerfile b/build/docker/ubuntu-xenial/Dockerfile
index 119d4cd..8dc6497 100644
--- a/build/docker/ubuntu-xenial/Dockerfile
+++ b/build/docker/ubuntu-xenial/Dockerfile
@@ -14,7 +14,7 @@
 # Apache Thrift Docker build environment for Ubuntu Xenial
 # Using all stock Ubuntu Xenial packaging except for:
 # - d: does not come with Ubuntu so we're installing 2.075.1 for coverage
-# - dart: does not come with Ubuntu so we're installing 1.24.3 for coverage
+# - dart: does not come with Ubuntu so we're installing 2.0.0-1 for coverage
 # - dotnet: does not come with Ubuntu
 # - go: Xenial comes with 1.6, but we need 1.10 or later
 # - nodejs: Xenial comes with 4.2.6 which exits LTS April 2018, so we're installing 6.x
@@ -35,29 +35,29 @@
       apt-utils \
       curl \
       software-properties-common \
-      wget
+      wget && \
 
 # csharp (mono)
-# RUN echo "deb http://download.mono-project.com/repo/debian xenial main" | tee /etc/apt/sources.list.d/mono.list && \
-#     apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A6A19B38D3D831EF
+# echo "deb http://download.mono-project.com/repo/debian xenial main" | tee /etc/apt/sources.list.d/mono.list && \
+#     apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A6A19B38D3D831EF && \
 
 # D
-RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EBCF975E5BA24D5E && \
+    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EBCF975E5BA24D5E && \
     wget http://master.dl.sourceforge.net/project/d-apt/files/d-apt.list -O /etc/apt/sources.list.d/d-apt.list && \
-    wget -qO - https://dlang.org/d-keyring.gpg | apt-key add -
+    wget -qO - https://dlang.org/d-keyring.gpg | apt-key add - && \
 
 # Dart
-RUN curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
+    curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
     curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_stable.list > \
-      /etc/apt/sources.list.d/dart_stable.list
+      /etc/apt/sources.list.d/dart_stable.list && \
 
 # dotnet (core)
-RUN curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > /etc/apt/trusted.gpg.d/microsoft.gpg && \
+    curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > /etc/apt/trusted.gpg.d/microsoft.gpg && \
     echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-xenial-prod xenial main" > \
-      /etc/apt/sources.list.d/dotnetdev.list
+      /etc/apt/sources.list.d/dotnetdev.list && \
 
 # node.js
-RUN curl -sL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
+    curl -sL https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
     echo "deb https://deb.nodesource.com/node_6.x xenial main" | tee /etc/apt/sources.list.d/nodesource.list
 
 ### install general dependencies
@@ -119,7 +119,7 @@
     mv openssl-1.1.6-1.0.1g/C/* /usr/include/dmd/druntime/import/C/ && \
     rm -rf openssl-1.1.6-1.0.1g
 
-ENV DART_VERSION 1.24.3-1
+ENV DART_VERSION 2.0.0-1
 RUN apt-get install -y --no-install-recommends \
 `# Dart dependencies` \
       dart=$DART_VERSION
@@ -151,7 +151,7 @@
       ln -s /usr/local/go/bin/go /usr/local/bin && \
       rm golang.tar.gz
 
-# due to a bug in cabal in xenial (cabal-install package) we pull in another:
+# cabal 1.22 in xenial is too old so we grab a pre-built 1.24 binary
 RUN apt-get install -y --no-install-recommends \
 `# Haskell dependencies` \
       ghc && \
@@ -160,7 +160,8 @@
     tar xzf cabal-install-1.24.0.2-x86_64-unknown-linux.tar.gz && \
     find dist-newstyle/ -type f -name cabal -exec mv {} /usr/bin \; && \
     rm -rf /tmp/cabal* && \
-    cabal --version
+    cabal --version && \
+    cabal update
 
 RUN apt-get install -y --no-install-recommends \
 `# Haxe dependencies` \
@@ -179,10 +180,11 @@
       openjdk-8-jdk \
       maven
 
-RUN apt-get install -y --no-install-recommends \
-`# Lua dependencies` \
-      lua5.2 \
-      lua5.2-dev
+# disabled: same as ubuntu-bionic jobs
+# RUN apt-get install -y --no-install-recommends \
+# `# Lua dependencies` \
+#       lua5.2 \
+#       lua5.2-dev
 # https://bugs.launchpad.net/ubuntu/+source/lua5.3/+bug/1707212
 # lua5.3 does not install alternatives so stick with 5.2 here
 
@@ -255,7 +257,7 @@
       ruby-bundler
 
 # Rust dependencies
-RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain 1.35.0 -y
+RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain 1.34.0 -y
 
 # Clean up
 RUN rm -rf /var/cache/apt/* && \
diff --git a/lib/d/README.md b/lib/d/README.md
index 5d37e4f..9b188ab 100644
--- a/lib/d/README.md
+++ b/lib/d/README.md
@@ -42,17 +42,8 @@
 
 dmd -ofunittest -unittest -w $(dir -r -filter '*.d' -name)
 
-If you want to run the test clients/servers in OpenSSL
-mode, you have to provide »server-private-key.pem« and
-»server-certificate.pem« files in the directory the server
-executable resides in, and a »trusted-ca-certificate.pem«
-file for the client. The easiest way is to generate a new
-self signed certificate using the provided config file
-(openssl.test.cnf):
-
-openssl req -new -x509 -nodes -config openssl.test.cnf \
-  -out server-certificate.pem
-cat server-certificate.pem > trusted-ca-certificate.pem
-
-This steps are also performed automatically by the
-Autotools build system if the files are not present.
+Async and SSL
+-------------
+Using SSL with async is experimental (always has been) and
+the unit test "async_test --ssl" hangs.  Use at your own
+risk.
diff --git a/lib/d/test/Makefile.am b/lib/d/test/Makefile.am
index 3b6a6f1..5ec8255 100755
--- a/lib/d/test/Makefile.am
+++ b/lib/d/test/Makefile.am
@@ -19,9 +19,6 @@
 
 AUTOMAKE_OPTIONS = serial-tests
 
-BUILT_SOURCES = trusted-ca-certificate.pem server-certificate.pem
-
-
 # Thrift compiler rules
 
 debug_proto_gen = $(addprefix gen-d/, DebugProtoTest_types.d)
@@ -99,17 +96,6 @@
 	$(DMD) $(d_test_flags) -of$@ $^
 
 
-# Certificate generation targets (for the SSL tests).
-# Currently, we just assume that the "openssl" tool is on the path, could be
-# replaced by a more elaborate mechanism.
-
-server-certificate.pem: openssl.test.cnf
-	openssl req -new -x509 -nodes -config openssl.test.cnf \
-		-out server-certificate.pem
-
-trusted-ca-certificate.pem: server-certificate.pem
-	cat server-certificate.pem > $@
-
 check-local: $(targets)
 
 clean-local:
@@ -118,9 +104,8 @@
 
 # Tests ran as part of make check.
 
-async_test_runner.sh: async_test trusted-ca-certificate.pem server-certificate.pem
-thrift_test_runner.sh: thrift_test_client thrift_test_server \
-	trusted-ca-certificate.pem server-certificate.pem
+async_test_runner.sh: async_test
+thrift_test_runner.sh: thrift_test_client thrift_test_server
 
 TESTS = $(ran_tests)
 
diff --git a/lib/d/test/async_test.d b/lib/d/test/async_test.d
index fb765ad..51529ba 100644
--- a/lib/d/test/async_test.d
+++ b/lib/d/test/async_test.d
@@ -104,18 +104,18 @@
   if (ssl) {
     auto clientSSLContext = new TSSLContext();
     with (clientSSLContext) {
-      ciphers = "ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH";
       authenticate = true;
-      loadTrustedCertificates("./trusted-ca-certificate.pem");
+      ciphers = "ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH";
+      loadTrustedCertificates("../../../test/keys/CA.pem");
     }
     clientTransportFactory = new TAsyncSSLSocketFactory(clientSSLContext);
 
     serverSSLContext = new TSSLContext();
     with (serverSSLContext) {
       serverSide = true;
-      loadCertificate("./server-certificate.pem");
-      loadPrivateKey("./server-private-key.pem");
       ciphers = "ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH";
+      loadCertificate("../../../test/keys/server.crt");
+      loadPrivateKey("../../../test/keys/server.key");
     }
   } else {
     clientTransportFactory = new TBufferedTransportFactory;
diff --git a/lib/d/test/async_test_runner.sh b/lib/d/test/async_test_runner.sh
index 7d507ee..d56654f 100755
--- a/lib/d/test/async_test_runner.sh
+++ b/lib/d/test/async_test_runner.sh
@@ -24,5 +24,8 @@
 # Runs the async test in both SSL and non-SSL mode.
 ${CUR}/async_test > /dev/null || exit 1
 echo "Non-SSL tests done."
-${CUR}/async_test --ssl > /dev/null || exit 1
-echo "SSL tests done."
+
+# THRIFT-4905: disabled the following test as it deadlocks / hangs
+# ${CUR}/async_test --ssl > /dev/null || exit 1
+# echo "SSL tests done."
+echo "THRIFT-4905: SSL tests are disabled.  Fix them."
diff --git a/lib/d/test/openssl.test.cnf b/lib/d/test/openssl.test.cnf
deleted file mode 100644
index 2ada30b..0000000
--- a/lib/d/test/openssl.test.cnf
+++ /dev/null
@@ -1,14 +0,0 @@
-[ req ]
-default_bits = 2048
-default_keyfile = server-private-key.pem
-distinguished_name = req_distinguished_name
-x509_extensions = v3_ca
-prompt = no
-
-[ req_distinguished_name ]
-CN = localhost
-
-[ v3_ca ]
-# Add ::1 to the list of allowed IPs so we can use ::1 to explicitly connect
-# to localhost via IPv6.
-subjectAltName = IP:::1
diff --git a/lib/d/test/thrift_test_server.d b/lib/d/test/thrift_test_server.d
index b582253..ce820d6 100644
--- a/lib/d/test/thrift_test_server.d
+++ b/lib/d/test/thrift_test_server.d
@@ -20,7 +20,7 @@
 module thrift_test_server;
 
 import core.stdc.errno : errno;
-import core.stdc.signal : signal, sigfn_t, SIGINT, SIG_DFL, SIG_ERR;
+import core.stdc.signal : signal, SIGINT, SIG_DFL, SIG_ERR;
 import core.thread : dur, Thread;
 import std.algorithm;
 import std.exception : enforce;
@@ -314,8 +314,7 @@
     processor, serverSocket, transportFactory, protocolFactory);
 
   // Set up SIGINT signal handling
-  sigfn_t oldHandler = signal(SIGINT, &handleSignal);
-  enforce(oldHandler != SIG_ERR,
+  enforce(signal(SIGINT, &handleSignal) != SIG_ERR,
     "Could not replace the SIGINT signal handler: errno {0}".format(errno()));
   
   // Set up a server cancellation trigger
diff --git a/lib/js/package-lock.json b/lib/js/package-lock.json
index 9110814..00bf05c 100644
--- a/lib/js/package-lock.json
+++ b/lib/js/package-lock.json
@@ -58,41 +58,6 @@
         "es6-promisify": "^5.0.0"
       }
     },
-    "ajv": {
-      "version": "5.5.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
-      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "co": "^4.6.0",
-        "fast-deep-equal": "^1.0.0",
-        "fast-json-stable-stringify": "^2.0.0",
-        "json-schema-traverse": "^0.3.0"
-      }
-    },
-    "align-text": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
-      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
-      "dev": true,
-      "requires": {
-        "kind-of": "^3.0.2",
-        "longest": "^1.0.1",
-        "repeat-string": "^1.5.2"
-      },
-      "dependencies": {
-        "kind-of": {
-          "version": "3.2.2",
-          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
-          "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
-          "dev": true,
-          "requires": {
-            "is-buffer": "^1.1.5"
-          }
-        }
-      }
-    },
     "ansi-regex": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
@@ -185,16 +150,6 @@
       "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
       "dev": true
     },
-    "asn1": {
-      "version": "0.2.4",
-      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
-      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "safer-buffer": "~2.1.0"
-      }
-    },
     "asn1.js": {
       "version": "4.10.1",
       "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
@@ -232,12 +187,6 @@
         }
       }
     },
-    "assert-plus": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
-      "dev": true
-    },
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
@@ -256,33 +205,12 @@
       "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
       "dev": true
     },
-    "asynckit": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
-      "dev": true,
-      "optional": true
-    },
     "atob": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
       "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==",
       "dev": true
     },
-    "aws-sign2": {
-      "version": "0.7.0",
-      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
-      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
-      "dev": true,
-      "optional": true
-    },
-    "aws4": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
-      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==",
-      "dev": true,
-      "optional": true
-    },
     "babylon": {
       "version": "7.0.0-beta.19",
       "resolved": "https://registry.npmjs.org/babylon/-/babylon-7.0.0-beta.19.tgz",
@@ -355,16 +283,6 @@
       "integrity": "sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw==",
       "dev": true
     },
-    "bcrypt-pbkdf": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
-      "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "tweetnacl": "^0.14.3"
-      }
-    },
     "bluebird": {
       "version": "3.5.3",
       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
@@ -628,15 +546,6 @@
         "parse-asn1": "^5.0.0"
       }
     },
-    "browserify-zlib": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/browserify-zlib/-/browserify-zlib-0.1.4.tgz",
-      "integrity": "sha1-uzX4pRn2AOD6a4SFJByXnQFB+y0=",
-      "dev": true,
-      "requires": {
-        "pako": "~0.2.0"
-      }
-    },
     "buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.2.1.tgz",
@@ -716,13 +625,6 @@
         "map-obj": "^1.0.0"
       }
     },
-    "caseless": {
-      "version": "0.12.0",
-      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
-      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=",
-      "dev": true,
-      "optional": true
-    },
     "catharsis": {
       "version": "0.8.9",
       "resolved": "https://registry.npmjs.org/catharsis/-/catharsis-0.8.9.tgz",
@@ -731,16 +633,6 @@
         "underscore-contrib": "~0.3.0"
       }
     },
-    "center-align": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/center-align/-/center-align-0.1.3.tgz",
-      "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
-      "dev": true,
-      "requires": {
-        "align-text": "^0.1.3",
-        "lazy-cache": "^1.0.3"
-      }
-    },
     "chalk": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
@@ -796,9 +688,9 @@
       },
       "dependencies": {
         "glob": {
-          "version": "7.1.3",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
-          "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
+          "version": "7.1.4",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
+          "integrity": "sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==",
           "dev": true,
           "requires": {
             "fs.realpath": "^1.0.0",
@@ -811,24 +703,6 @@
         }
       }
     },
-    "cliui": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
-      "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
-      "dev": true,
-      "requires": {
-        "center-align": "^0.1.1",
-        "right-align": "^0.1.1",
-        "wordwrap": "0.0.2"
-      }
-    },
-    "co": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
-      "dev": true,
-      "optional": true
-    },
     "coffeescript": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-1.10.0.tgz",
@@ -878,14 +752,11 @@
         "source-map": "~0.5.3"
       }
     },
-    "combined-stream": {
-      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.7.tgz",
-      "integrity": "sha512-brWl9y6vOB1xYPZcpZde3N9zDByXTosAeMDo4p1wzo6UMOX4vumB+TP1RZ76sfE6Md68Q0NJSrE/gbezd4Ul+w==",
-      "dev": true,
-      "requires": {
-        "delayed-stream": "~1.0.0"
-      }
+    "commander": {
+      "version": "2.20.0",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
+      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
+      "dev": true
     },
     "component-emitter": {
       "version": "1.2.1",
@@ -1048,23 +919,6 @@
         "array-find-index": "^1.0.1"
       }
     },
-    "cycle": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/cycle/-/cycle-1.0.3.tgz",
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-    },
     "union-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
@@ -4908,13 +4271,6 @@
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
       "dev": true
     },
-    "uuid": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
-      "dev": true,
-      "optional": true
-    },
     "v8flags": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-3.1.2.tgz",
@@ -4934,18 +4290,6 @@
         "spdx-expression-parse": "^3.0.0"
       }
     },
-    "verror": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
-      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "assert-plus": "^1.0.0",
-        "core-util-is": "1.0.2",
-        "extsprintf": "^1.2.0"
-      }
-    },
     "vm-browserify": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/vm-browserify/-/vm-browserify-1.1.0.tgz",
@@ -4961,49 +4305,6 @@
         "isexe": "^2.0.0"
       }
     },
-    "window-size": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
-      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
-      "dev": true
-    },
-    "winston": {
-      "version": "2.4.4",
-      "resolved": "https://registry.npmjs.org/winston/-/winston-2.4.4.tgz",
-      "integrity": "sha512-NBo2Pepn4hK4V01UfcWcDlmiVTs7VTB1h7bgnB0rgP146bYhMxX0ypCz3lBOfNxCO4Zuek7yeT+y/zM1OfMw4Q==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "async": "~1.0.0",
-        "colors": "1.0.x",
-        "cycle": "1.0.x",
-        "eyes": "0.1.x",
-        "isstream": "0.1.x",
-        "stack-trace": "0.0.x"
-      },
-      "dependencies": {
-        "async": {
-          "version": "1.0.0",
-          "resolved": "http://registry.npmjs.org/async/-/async-1.0.0.tgz",
-          "integrity": "sha1-+PwEyjoTeErenhZBr5hXjPvWR6k=",
-          "dev": true,
-          "optional": true
-        },
-        "colors": {
-          "version": "1.0.3",
-          "resolved": "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
-          "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
-          "dev": true,
-          "optional": true
-        }
-      }
-    },
-    "wordwrap": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
-      "dev": true
-    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -5030,26 +4331,6 @@
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
       "dev": true
     },
-    "yargs": {
-      "version": "3.10.0",
-      "resolved": "http://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
-      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-      "dev": true,
-      "requires": {
-        "camelcase": "^1.0.2",
-        "cliui": "^2.1.0",
-        "decamelize": "^1.0.0",
-        "window-size": "0.1.0"
-      },
-      "dependencies": {
-        "camelcase": {
-          "version": "1.2.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
-          "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=",
-          "dev": true
-        }
-      }
-    },
     "yauzl": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
diff --git a/lib/rs/Cargo.toml b/lib/rs/Cargo.toml
index bad2a38..69da0f3 100644
--- a/lib/rs/Cargo.toml
+++ b/lib/rs/Cargo.toml
@@ -11,8 +11,8 @@
 keywords = ["thrift"]
 
 [dependencies]
-ordered-float = "0.5"
-byteorder = "1"
-integer-encoding = "1"
+ordered-float = "1.0"
+byteorder = "1.3"
+integer-encoding = "1.0"
 log = "0.4"
 threadpool = "1.7"
diff --git a/lib/rs/src/errors.rs b/lib/rs/src/errors.rs
index 6fb1aee..13be1ee 100644
--- a/lib/rs/src/errors.rs
+++ b/lib/rs/src/errors.rs
@@ -58,7 +58,6 @@
 /// Create a `TransportError`.
 ///
 /// ```
-/// use thrift;
 /// use thrift::{TransportError, TransportErrorKind};
 ///
 /// // explicit
@@ -104,7 +103,6 @@
 /// Create an error from a string.
 ///
 /// ```
-/// use thrift;
 /// use thrift::{ApplicationError, ApplicationErrorKind};
 ///
 /// // we just use `From::from` to convert a `String` into a `thrift::Error`
@@ -134,7 +132,6 @@
 /// ```
 ///
 /// ```
-/// use std::convert::From;
 /// use std::error::Error;
 /// use std::fmt;
 /// use std::fmt::{Display, Formatter};
diff --git a/lib/rs/src/protocol/stored.rs b/lib/rs/src/protocol/stored.rs
index 8c55978..4fe465f 100644
--- a/lib/rs/src/protocol/stored.rs
+++ b/lib/rs/src/protocol/stored.rs
@@ -42,7 +42,6 @@
 /// Create and use a `TStoredInputProtocol`.
 ///
 /// ```no_run
-/// use thrift;
 /// use thrift::protocol::{TInputProtocol, TMessageIdentifier, TMessageType, TOutputProtocol};
 /// use thrift::protocol::{TBinaryInputProtocol, TBinaryOutputProtocol, TStoredInputProtocol};
 /// use thrift::server::TProcessor;
diff --git a/lib/rs/src/server/mod.rs b/lib/rs/src/server/mod.rs
index 70b381a..3d42891 100644
--- a/lib/rs/src/server/mod.rs
+++ b/lib/rs/src/server/mod.rs
@@ -39,7 +39,6 @@
 /// a Thrift service `SimpleService`.
 ///
 /// ```no_run
-/// use thrift;
 /// use thrift::protocol::{TInputProtocol, TOutputProtocol};
 /// use thrift::server::TProcessor;
 ///
diff --git a/lib/rs/src/server/threaded.rs b/lib/rs/src/server/threaded.rs
index 8139a4e..e15a25a 100644
--- a/lib/rs/src/server/threaded.rs
+++ b/lib/rs/src/server/threaded.rs
@@ -43,7 +43,6 @@
 /// service code.
 ///
 /// ```no_run
-/// use thrift;
 /// use thrift::protocol::{TInputProtocolFactory, TOutputProtocolFactory};
 /// use thrift::protocol::{TBinaryInputProtocolFactory, TBinaryOutputProtocolFactory};
 /// use thrift::protocol::{TInputProtocol, TOutputProtocol};
diff --git a/lib/rs/test/Cargo.toml b/lib/rs/test/Cargo.toml
index 50dec19..dc4ffe3 100644
--- a/lib/rs/test/Cargo.toml
+++ b/lib/rs/test/Cargo.toml
@@ -7,8 +7,8 @@
 
 [dependencies]
 clap = "<2.28.0"
-ordered-float = "0.3.0"
-try_from = "0.2.0"
+ordered-float = "1.0"
+try_from = "0.3"
 
 [dependencies.thrift]
 path = "../"
diff --git a/test/features/tls.sh b/test/features/tls.sh
index dada6ab..6fd90a5 100755
--- a/test/features/tls.sh
+++ b/test/features/tls.sh
@@ -32,6 +32,7 @@
 EXPECT_NEGOTIATE[tls1]=1
 EXPECT_NEGOTIATE[tls1_1]=1
 EXPECT_NEGOTIATE[tls1_2]=1
+EXPECT_NEGOTIATE[tls1_3]=1
 
 failures=0
 
@@ -62,10 +63,10 @@
 
 tls
 
-if [[ $failures -eq 3 ]]; then
-  echo "[fail] At least one of TLSv1.0, TLSv1.1, or TLSv1.2 needs to work, but does not"
+if [[ $failures -eq 4 ]]; then
+  echo "[fail] At least one of TLSv1.0, TLSv1.1, TLSv1.2, or TLSv1.3 needs to work, but does not"
   exit $failures
 fi
 
-echo "[pass] At least one of TLSv1.0, TLSv1.1, or TLSv1.2 worked"
+echo "[pass] At least one of TLSv1.0, TLSv1.1, TLSv1.2, or TLSv1.3 worked"
 exit 0
diff --git a/test/rs/Cargo.toml b/test/rs/Cargo.toml
index 9b35e3c..c1058f9 100644
--- a/test/rs/Cargo.toml
+++ b/test/rs/Cargo.toml
@@ -6,11 +6,11 @@
 publish = false
 
 [dependencies]
-clap = "<2.28.0"
+clap = "2.33"
 env_logger = "0.4.0"
-log = "0.3.7"
-ordered-float = "0.3.0"
-try_from = "0.2.0"
+log = "0.4"
+ordered-float = "1.0"
+try_from = "0.3"
 
 [dependencies.thrift]
 path = "../../lib/rs"
diff --git a/test/tests.json b/test/tests.json
index 6a41639..78d4c0e 100644
--- a/test/tests.json
+++ b/test/tests.json
@@ -584,9 +584,9 @@
       ],
       "command": [
         "dart",
-	"--checked",
+	    "--enable-asserts",
         "test_client/bin/main.dart",
-	"--verbose"
+	    "--verbose"
       ]
     },
     "workdir": "dart"
@@ -612,9 +612,9 @@
         "true",
         "-noshell",
         "-pa",
-        "../../lib/erl/ebin/",
+        "../../lib/erl/_build/default/lib/thrift/ebin/",
         "-pa",
-        "./ebin",
+        "./_build/default/lib/thrift_test/ebin",
         "-s",
         "test_client",
         "-s",
@@ -630,9 +630,9 @@
         "true",
         "-noshell",
         "-pa",
-        "../../lib/erl/ebin/",
+        "../../lib/erl/_build/default/lib/thrift/ebin/",
         "-pa",
-        "./ebin",
+        "./_build/default/lib/thrift_test/ebin",
         "-s",
         "test_thrift_server",
         "-extra"
diff --git a/tutorial/rs/Cargo.toml b/tutorial/rs/Cargo.toml
index 210a0da..60f02d7 100644
--- a/tutorial/rs/Cargo.toml
+++ b/tutorial/rs/Cargo.toml
@@ -7,9 +7,9 @@
 publish = false
 
 [dependencies]
-clap = "<2.28.0"
-ordered-float = "0.3.0"
-try_from = "0.2.0"
+clap = "2.33"
+ordered-float = "1.0"
+try_from = "0.3"
 
 [dependencies.thrift]
 path = "../../lib/rs"