diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7f2f31ff8..2f123a55d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,111 @@
 # Change Log
 
+## [Unreleased](https://github.com/swift-nav/libsbp/tree/HEAD)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.39...HEAD)
+
+**Merged pull requests:**
+
+- Allow the logger to inject tags into the logs [\#145](https://github.com/swift-nav/libsbp/pull/145)
+
+## [v0.39](https://github.com/swift-nav/libsbp/tree/v0.39) (2015-05-05)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.38...v0.39)
+
+**Fixed bugs:**
+
+- 'make latex' fails with 'too many floats' [\#85](https://github.com/swift-nav/libsbp/issues/85)
+
+**Closed issues:**
+
+- Protocol version number in docs is hard-coded, should be same as sbp package version? [\#86](https://github.com/swift-nav/libsbp/issues/86)
+- Document process for adding new messages [\#78](https://github.com/swift-nav/libsbp/issues/78)
+
+**Merged pull requests:**
+
+- rev the version [\#143](https://github.com/swift-nav/libsbp/pull/143)
+- Latex datasheet fixes. [\#142](https://github.com/swift-nav/libsbp/pull/142)
+- Add an example byte logger. [\#140](https://github.com/swift-nav/libsbp/pull/140)
+- Crc namespace collision [\#133](https://github.com/swift-nav/libsbp/pull/133)
+- SBP doc: Table 2.0.1. s/Payload/Packet/ [\#126](https://github.com/swift-nav/libsbp/pull/126)
+- Release HOWTO and supporting Makefile tasks. [\#102](https://github.com/swift-nav/libsbp/pull/102)
+
+## [v0.38](https://github.com/swift-nav/libsbp/tree/v0.38) (2015-04-29)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.37...v0.38)
+
+**Implemented enhancements:**
+
+- Create Jenkins pull request builder [\#26](https://github.com/swift-nav/libsbp/issues/26)
+
+**Merged pull requests:**
+
+- Handle failing parsing [\#136](https://github.com/swift-nav/libsbp/pull/136)
+
+## [v0.37](https://github.com/swift-nav/libsbp/tree/v0.37) (2015-04-24)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.36...v0.37)
+
+**Fixed bugs:**
+
+- Disallow NaN in JSON [\#128](https://github.com/swift-nav/libsbp/issues/128)
+
+**Merged pull requests:**
+
+- Add file mode as a parameter - have log iterator take a filename [\#132](https://github.com/swift-nav/libsbp/pull/132)
+- Removes unused message template. [\#131](https://github.com/swift-nav/libsbp/pull/131)
+- Update SBP fields when materializing child objects. [\#130](https://github.com/swift-nav/libsbp/pull/130)
+- Suppress NaN in python JSON dump [\#129](https://github.com/swift-nav/libsbp/pull/129)
+- Remove the main from client - it's in piksi tools [\#127](https://github.com/swift-nav/libsbp/pull/127)
+
+## [v0.36](https://github.com/swift-nav/libsbp/tree/v0.36) (2015-04-17)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.35...v0.36)
+
+**Fixed bugs:**
+
+- MsgEphemeris ID change breaks sbp\_log\_analysis [\#119](https://github.com/swift-nav/libsbp/issues/119)
+
+**Merged pull requests:**
+
+- Reinstate MSG\_EPHEMERIS at 0x001A as MSG\_EPHEMERIS\_OLD [\#125](https://github.com/swift-nav/libsbp/pull/125)
+- Make ext\_events messages public [\#124](https://github.com/swift-nav/libsbp/pull/124)
+- Expand JSON messages before they go out [\#123](https://github.com/swift-nav/libsbp/pull/123)
+- handle unpickling error more gracefully [\#105](https://github.com/swift-nav/libsbp/pull/105)
+
+## [v0.35](https://github.com/swift-nav/libsbp/tree/v0.35) (2015-04-17)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.34...v0.35)
+
+**Closed issues:**
+
+- Remove init known baseline feature from console [\#116](https://github.com/swift-nav/libsbp/issues/116)
+- Update sbp integration tutorial? [\#27](https://github.com/swift-nav/libsbp/issues/27)
+
+**Merged pull requests:**
+
+- Catch message dispatch KeyErrors and make them warnings. [\#122](https://github.com/swift-nav/libsbp/pull/122)
+- Make the handler test more robust [\#121](https://github.com/swift-nav/libsbp/pull/121)
+- Bootload test fixes \(and more!\) [\#117](https://github.com/swift-nav/libsbp/pull/117)
+- Misc Fixes [\#114](https://github.com/swift-nav/libsbp/pull/114)
+
+## [v0.34](https://github.com/swift-nav/libsbp/tree/v0.34) (2015-04-16)
+
+[Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.33...v0.34)
+
+**Fixed bugs:**
+
+- SBP pickle framer might be stripping  [\#113](https://github.com/swift-nav/libsbp/issues/113)
+
+**Closed issues:**
+
+- Change MSG\_EPHEMERIS id to be in "over the radio" group [\#98](https://github.com/swift-nav/libsbp/issues/98)
+
+**Merged pull requests:**
+
+- Minor JSON fixes [\#110](https://github.com/swift-nav/libsbp/pull/110)
+- Release notes and changelog for v0.29 [\#100](https://github.com/swift-nav/libsbp/pull/100)
+
 ## [v0.33](https://github.com/swift-nav/libsbp/tree/v0.33) (2015-04-15)
 
 [Full Changelog](https://github.com/swift-nav/libsbp/compare/v0.32...v0.33)
diff --git a/Makefile b/Makefile
index 7626cc8058..6484d94162 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,6 @@ SWIFTNAV_ROOT := $(shell pwd)
 MAKEFLAGS += SWIFTNAV_ROOT=$(SWIFTNAV_ROOT)
 SBP_SPEC_DIR := $(SWIFTNAV_ROOT)/spec/yaml/swiftnav/sbp/
 SBP_GEN_BIN := python sbpg/generator.py
-CHANGELOG_GITHUB_TOKEN := CHANGELOG_GITHUB_TOKEN
 
 .PHONY: help all c python docs pdf html test release dist
 
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index d7ccbb07bc..3bd8647006 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -6,8 +6,37 @@ For a detailed index of changes, please see the
 
 Contents
 --------
+ * [v0.39](#v0.39)
  * [v0.33](#v0.33)
 
+v0.39 <a name="v0.39"></a>
+--------------------------
+
+Bug fixes, minor additions, and stability enhancements since
+[v0.33](#v0.33).
+
+#### Specifications
+
+- New external events trigger message.
+- The ephemeris message is now included in the list of messages to be
+  sent over the radio. The ephemeris' field names have been changed to
+  avoid clashing with existing SBP fields (e.g., 'crc' to 'c_rc').
+
+#### Python Library
+
+- Easier to actually materialize a message in place using fields and
+  create a new SBP packet to send over the wire. Previously, you
+  could only create message objects by deserializing from an existing
+  SBP message!
+- Robustness improvements for serializing message types to/from JSON.
+- Piksi serial link command line tool (`serial_link.py`) now lives in
+  [piksi_tools](https://github.com/swift-nav/piksi_tools/).
+
+#### Datasheet Documentation
+
+- More stable datasheet generation when adding new messages ("the
+  floats are too dang high!" and automatic versioning from git tags).
+
 v0.33 <a name="v0.33"></a>
 --------------------------