diff --git a/.travis.yml b/.travis.yml
index 4eb2924..2816fac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -57,11 +57,6 @@
     - stage: docker
       script: true
       env:
-        - JOB="Docker Build ubuntu-trusty 14.04"
-        - DISTRO=ubuntu-trusty
-        - TRAVIS_BUILD_STAGE=docker
-    - script: true
-      env:
         - JOB="Docker Build ubuntu-xenial 16.04"
         - DISTRO=ubuntu-xenial
         - TRAVIS_BUILD_STAGE=docker
@@ -159,12 +154,6 @@
         - DISTRO=ubuntu-xenial
         - SCRIPT="autotools.sh"
 
-    - script: build/docker/run.sh
-      env:
-        - JOB="Autotools (Ubuntu Trusty)"
-        - DISTRO=ubuntu-trusty
-        - SCRIPT="autotools.sh"
-
     # ------------------------- phase: dist -------------------------
     - script: build/docker/run.sh
       env:
diff --git a/LANGUAGES.md b/LANGUAGES.md
index de37680..c99c457 100644
--- a/LANGUAGES.md
+++ b/LANGUAGES.md
@@ -1,12 +1,12 @@
 # Apache Thrift Language Support #
 
-Last Modified: 2018-03-05
+Last Modified: 2018-03-06
 
 Thrift supports many programming languages and has an impressive test suite that exercises most of the languages, protocols, and transports that represents a matrix of thousands of possible combinations.  Each language typically has a minimum required version as well as support libraries - some mandatory and some optional.  All of this information is provided below to help you assess whether you can use Apache Thrift with your project.  Obviously this is a complex matrix to maintain and may not be correct in all cases - if you spot an error please inform the developers using the mailing list.
 
-Apache Thrift has a choice of two build systems.  The `autoconf` build system is the most complete build and is used to build all supported languages.  The `cmake` build system has been designated by the project to replace `autoconf` however this transition will take quite some time to complete. 
+Apache Thrift has a choice of two build systems.  The `autoconf` build system is the most complete build and is used to build all supported languages.  The `cmake` build system has been designated by the project to replace `autoconf` however this transition will take quite some time to complete.
 
-The Language/Library Levels indicate the minimum and maximum versions that are used in the [continuous integration environments](build/docker/README.md) (Appveyor, Travis) for Apache Thrift.  Note that while a language may contain support for protocols, transports, and servers, the extent to which each is tested as part of the overall build process varies.  The definitive integration test for the project is called the "cross" test which executes a test matrix with clients and servers communicating across languages.
+The Language/Library Levels indicate the minimum and maximum versions that are used in the [continuous integration environments](build/docker/README.md) (Appveyor, Travis) for Apache Thrift.  Other language levels may be supported for each language, however tested less thoroughly; check the README file inside each lib directory for additional details.  Note that while a language may contain support for protocols, transports, and servers, the extent to which each is tested as part of the overall build process varies.  The definitive integration test for the project is called the "cross" test which executes a test matrix with clients and servers communicating across languages.
 
 <table style="font-size: 60%; padding: 1px;">
 <thead>
@@ -14,7 +14,7 @@
 <th rowspan=2>Language</th>
 <th rowspan=2 align=center>Since</th>
 <th colspan=2 align=center>Build Systems</th>
-<th colspan=2 align=center>Lang/Lib Levels</th>
+<th colspan=2 align=center>Lang/Lib Levels (Tested)</th>
 <th colspan=6 align=center>Low-Level Transports</th>
 <th colspan=3 align=center>Transport Wrappers</th>
 <th colspan=4 align=center>Protocols</th>
@@ -46,7 +46,7 @@
 <td align=left><a href="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>2.40.2</td><td>2.54.0</td>
+<!-- Language Levels -------><td>2.48.2</td><td>2.54.0</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/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>
@@ -101,7 +101,7 @@
 <td align=left><a href="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>2.070.2</td><td>2.077.1</td>
+<!-- Language Levels -------><td>2.073.2</td><td>2.077.1</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/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>
@@ -112,7 +112,7 @@
 <td align=left><a href="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>1.20.1</td><td>1.24.3</td>
+<!-- Language Levels -------><td>1.22.1</td><td>1.24.3</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/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>
@@ -134,7 +134,7 @@
 <td align=left><a href="lib/netcore/README.md">.NET Core</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>2.0.0</td><td>2.1.4</td>
+<!-- Language Levels -------><td colspan=2>2.1.4</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/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/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>
@@ -145,7 +145,7 @@
 <td align=left><a href="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>R16B03</td><td>20.0.4</td>
+<!-- Language Levels -------><td>18.3</td><td>20.0.4</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/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>
@@ -156,7 +156,7 @@
 <td align=left><a href="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>1.2.1</td><td>1.8.3</td>
+<!-- Language Levels -------><td>1.6.2</td><td>1.8.3</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/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>
@@ -167,7 +167,7 @@
 <td align=left><a href="lib/hs/README.md">Haskell</a></td>
 <!-- Since -----------------><td>0.5.0</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>7.6.3</td><td>8.0.2</td>
+<!-- Language Levels -------><td>7.10.3</td><td>8.0.2</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/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/cred.png" alt=""/></td>
@@ -189,7 +189,7 @@
 <td align=left><a href="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>1.7.0_151</td><td>1.8.0_151</td>
+<!-- Language Levels -------><td colspan=2>1.8.0_151</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/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>
@@ -233,7 +233,7 @@
 <td align=left><a href="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>4.2.6</td><td>8.9.4</td>
+<!-- Language Levels -------><td>6.x</td><td>8.x</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/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>
@@ -255,7 +255,7 @@
 <td align=left><a href="lib/perl/README.md">Perl</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>5.18.2</td><td>5.26.0</td>
+<!-- Language Levels -------><td>5.22.1</td><td>5.26.0</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/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/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/cred.png" alt=""/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td><td><img src="doc/images/cgrn.png" alt="Yes"/></td>
@@ -266,7 +266,7 @@
 <td align=left><a href="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>5.5.9</td><td>7.1.8</td>
+<!-- Language Levels -------><td>7.0.22</td><td>7.1.8</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/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/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>
@@ -277,7 +277,7 @@
 <td align=left><a href="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>2.7.6, 3.4.3</td><td>2.7.14, 3.6.3</td>
+<!-- Language Levels -------><td>2.7.12, 3.5.2</td><td>2.7.14, 3.6.3</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>
 <!-- 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>
@@ -288,7 +288,7 @@
 <td align=left><a href="lib/rb/README.md">Ruby</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>1.9.3p484</td><td>2.3.3p222</td>
+<!-- Language Levels -------><td>2.3.1p112</td><td>2.3.3p222</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/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/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>
@@ -299,7 +299,7 @@
 <td align=left><a href="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>1.15.1</td><td>1.21.0</td>
+<!-- Language Levels -------><td>1.17.0</td><td>1.21.0</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>
 <!-- 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>
@@ -332,7 +332,7 @@
 </tr>
 <tr>
 <th colspan=2 align=center>Build Systems</th>
-<th colspan=2 align=center>Lang/Lib Levels</th>
+<th colspan=2 align=center>Lang/Lib Levels (Tested)</th>
 <th colspan=6 align=center>Low-Level Transports</th>
 <th colspan=3 align=center>Transport Wrappers</th>
 <th colspan=4 align=center>Protocols</th>
diff --git a/build/docker/README.md b/build/docker/README.md
index 35943e1..d7a0126 100644
--- a/build/docker/README.md
+++ b/build/docker/README.md
@@ -31,9 +31,8 @@
 
 ### Ubuntu ###
 
-* trusty (legacy)
 * xenial (stable)
-* artful (latest)
+* artful (current)
 
 ## Unsupported Containers ##
 
@@ -115,55 +114,55 @@
 
 Last updated: October 1, 2017
 
-| Tool      | ubuntu-trusty | ubuntu-xenial | ubuntu-artful | Notes |
-| :-------- | :------------ | :------------ | :------------ | :---- |
-| ant       | 1.9.3         | 1.9.6         | 1.9.9         |       |
-| autoconf  | 2.69          | 2.69          | 2.69          |       |
-| automake  | 1.14.1        | 1.15          | 1.15          |       |
-| bison     | 3.0.2         | 3.0.4         | 3.0.4         |       |
-| boost     | 1.54.0        | 1.58.0        | 1.63.0        | artful: stock boost 1.62.0 has problems running unit tests |
-| cmake     | 3.2.2         | 3.5.1         | 3.9.1         |       |
-| cppcheck  | 1.61          | 1.72          | 1.80          |       |
-| flex      | 2.5.35        | 2.6.0         | 2.6.1         |       |
-| glibc     | 2.19          | 2.23          | 2.26          |       |
-| libevent  | 2.0.21        | 2.0.21        | 2.1           |       |
-| libstdc++ | 4.8.4         | 5.4.0         | 7.2.0         |       |
-| make      | 3.81          | 4.1           | 4.1           |       |
-| openssl   | 1.0.1f        | 1.0.2g        | 1.0.2g        |       |
-| qt5       | 5.2.1         | 5.5.1         | 5.9.1         |       |
+| Tool      | ubuntu-xenial | ubuntu-artful | Notes |
+| :-------- | :------------ | :------------ | :---- |
+| ant       | 1.9.6         | 1.9.9         |       |
+| autoconf  | 2.69          | 2.69          |       |
+| automake  | 1.15          | 1.15          |       |
+| bison     | 3.0.4         | 3.0.4         |       |
+| boost     | 1.58.0        | 1.63.0        | artful: stock boost 1.62.0 has problems running unit tests |
+| cmake     | 3.5.1         | 3.9.1         |       |
+| cppcheck  | 1.72          | 1.80          |       |
+| flex      | 2.6.0         | 2.6.1         |       |
+| glibc     | 2.23          | 2.26          |       |
+| libevent  | 2.0.21        | 2.1           |       |
+| libstdc++ | 5.4.0         | 7.2.0         |       |
+| make      | 4.1           | 4.1           |       |
+| openssl   | 1.0.2g        | 1.0.2g        |       |
+| qt5       | 5.5.1         | 5.9.1         |       |
 
 ## Compiler/Language Versions per Dockerfile ##
 
-| Language  | ubuntu-trusty | ubuntu-xenial | ubuntu-artful | Notes |
-| :-------- | :------------ | :------------ | :------------ | :---- |
-| as of     | Oct 01, 2017  | Jan 29, 2018  | Mar 02, 2018  |       |
-| as3       |               |               |               | Not in CI |
-| C++ gcc   | 4.8.4         | 5.4.0         | 7.2.0         |       |
-| C++ clang | 3.4           | 3.8           | 4.0           |       |
-| C# (mono) | 3.2.8.0       | 4.2.1.0       | 4.6.2.7       |       |
-| c_glib    | 2.40.2        | 2.48.2        | 2.54.0        |       |
-| CL (sbcl) |               |               | 1.4.4         |       |
-| cocoa     |               |               |               | Not in CI |
-| d         | 2.070.2       | 2.073.2       | 2.077.1       |       |
-| dart      | 1.20.1        | 1.22.1        | 1.24.3        |       |
-| delphi    |               |               |               | Not in CI |
-| dotnet    |               | 2.1.4         | 2.1.4         | v2.1.4 SDK uses v2.0.5 Runtime |
-| erlang    | R16B03        | 18.3          | 20.0.4        |       |
-| go        | 1.2.1         | 1.6.2         | 1.8.3         |       |
-| haskell   | 7.6.3         | 7.10.3        | 8.0.2         |       |
-| haxe      |               | 3.2.1         | 3.4.4         | THRIFT-4352: avoid 3.4.2 |
-| java      | 1.7.0_151     | 1.8.0_151     | 1.8.0_151     |       |
-| js        |               |               |               | Unsure how to look for version info? |
-| lua       | 5.1.5         | 5.2.4         | 5.2.4         | Lua 5.3: see THRIFT-4386 |
-| nodejs    |               | 4.2.6         | 8.9.4         | trusty has node.js 0.10.0 which is too old |
-| ocaml     |               | 4.02.3        | 4.04.0        |       |
-| perl      | 5.18.2        | 5.22.1        | 5.26.0        |       |
-| php       | 5.5.9         | 7.0.22        | 7.1.11        |       |
-| python    | 2.7.6         | 2.7.12        | 2.7.14        |       |
-| python3   | 3.4.3         | 3.5.2         | 3.6.3         |       |
-| ruby      | 1.9.3p484     | 2.3.1p112     | 2.3.3p222     |       |
-| rust      | 1.15.1        | 1.17.0        | 1.21.0        |       |
-| smalltalk |               |               |               | Not in CI |
-| swift     |               |               |               | Not in CI |
+| Language  | ubuntu-xenial | ubuntu-artful | Notes |
+| :-------- | :------------ | :------------ | :---- |
+| as of     | Mar 06, 2018  | Mar 06, 2018  |       |
+| as3       |               |               | Not in CI |
+| C++ gcc   | 5.4.0         | 7.2.0         |       |
+| C++ clang | 3.8           | 4.0           |       |
+| C# (mono) | 4.2.1.0       | 4.6.2.7       |       |
+| c_glib    | 2.48.2        | 2.54.0        |       |
+| CL (sbcl) |               | 1.4.4         |       |
+| cocoa     |               |               | Not in CI |
+| d         | 2.073.2       | 2.077.1       |       |
+| dart      | 1.22.1        | 1.24.3        |       |
+| delphi    |               |               | Not in CI |
+| dotnet    | 2.1.4         | 2.1.4         | v2.1.4 SDK uses v2.0.5 Runtime |
+| erlang    | 18.3          | 20.0.4        |       |
+| go        | 1.6.2         | 1.8.3         |       |
+| haskell   | 7.10.3        | 8.0.2         |       |
+| haxe      | 3.2.1         | 3.4.4         | THRIFT-4352: avoid 3.4.2 |
+| java      | 1.8.0_151     | 1.8.0_151     |       |
+| js        |               |               | Unsure how to look for version info? |
+| lua       | 5.2.4         | 5.2.4         | Lua 5.3: see THRIFT-4386 |
+| nodejs    | 6.13.0        | 8.9.4         |       |
+| ocaml     | 4.02.3        | 4.04.0        |       |
+| perl      | 5.22.1        | 5.26.0        |       |
+| php       | 7.0.22        | 7.1.11        |       |
+| python    | 2.7.12        | 2.7.14        |       |
+| python3   | 3.5.2         | 3.6.3         |       |
+| ruby      | 2.3.1p112     | 2.3.3p222     |       |
+| rust      | 1.17.0        | 1.21.0        |       |
+| smalltalk |               |               | Not in CI |
+| swift     |               |               | Not in CI |
 
 
diff --git a/build/docker/ubuntu-artful/Dockerfile b/build/docker/ubuntu-artful/Dockerfile
index 0b5b8ed..416d75e 100644
--- a/build/docker/ubuntu-artful/Dockerfile
+++ b/build/docker/ubuntu-artful/Dockerfile
@@ -19,6 +19,7 @@
 # - dotnet: does not come with Ubuntu
 # - haxe: version 3.4.2 that comes with Ubuntu cores in our CI build
 # - nodejs: want v8, Ubuntu comes with v6
+#
 
 FROM buildpack-deps:artful-scm
 MAINTAINER Apache Thrift <dev@thrift.apache.org>
diff --git a/build/docker/ubuntu-xenial/Dockerfile b/build/docker/ubuntu-xenial/Dockerfile
index b37434b..b69d7ea 100644
--- a/build/docker/ubuntu-xenial/Dockerfile
+++ b/build/docker/ubuntu-xenial/Dockerfile
@@ -15,12 +15,9 @@
 # Using all stock Ubuntu Xenial packaging except for:
 # - d: does not come with Ubuntu so we're installing 2.073.2 for coverage
 # - dart: does not come with Ubuntu so we're installing 1.22.1 for coverage
+# - nodejs: Ubuntu comes with 4.2.6 which exits LTS April 2018, so we're installing 6.x
 #
 
-#
-# Known missing or disabled libraries:
-# - d: deimos for libevent and openssl omitted - not compatible / build errors
-
 FROM buildpack-deps:xenial-scm
 MAINTAINER Apache Thrift <dev@thrift.apache.org>
 ENV DEBIAN_FRONTEND noninteractive
@@ -58,6 +55,10 @@
     echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-xenial-prod xenial main" > \
       /etc/apt/sources.list.d/dotnetdev.list
 
+# node.js
+RUN 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
 RUN apt-get update && apt-get install -y --no-install-recommends \
 `# General dependencies` \
@@ -173,9 +174,7 @@
 
 RUN apt-get install -y --no-install-recommends \
 `# Node.js dependencies` \
-      nodejs \
-      npm && \
-    ln -s /usr/bin/nodejs /usr/bin/node
+      nodejs
 
 RUN apt-get install -y --no-install-recommends \
 `# OCaml dependencies` \
diff --git a/lib/nodejs/README.md b/lib/nodejs/README.md
index 8c25380..5b15ce6 100644
--- a/lib/nodejs/README.md
+++ b/lib/nodejs/README.md
@@ -22,7 +22,7 @@
 
 ## Compatibility
 
-node version 4 or later is required
+node version 6 or later is required
 
 ## Install
 
diff --git a/package.json b/package.json
index cd6c710..11e76a2 100644
--- a/package.json
+++ b/package.json
@@ -37,19 +37,19 @@
   "dependencies": {
     "node-int64": "^0.4.0",
     "q": "^1.5.0",
-    "ws": ">= 2.2.3"
+    "ws": "^5.0.0"
   },
   "devDependencies": {
     "buffer-equals": "^1.0.4",
-    "commander": "^2.11.0",
-    "connect": "^3.6.4",
+    "commander": "^2.14.1",
+    "connect": "^3.6.6",
     "istanbul": "^0.4.5",
-    "jsdoc": ">=3.5.5",
+    "jsdoc": "^3.5.5",
     "minimatch": "^3.0.4",
-    "phantomjs-prebuilt": "^2.1.7",
+    "phantomjs-prebuilt": "^2.1.16",
     "run-browser": "^2.0.2",
-    "tape": "^4.8.0",
-    "utf-8-validate": "^3.0.0"
+    "tape": "^4.9.0",
+    "utf-8-validate": "^4.0.0"
   },
   "scripts": {
     "cover": "lib/nodejs/test/testAll.sh COVER",