diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43305930508eec..647f5d1f963f3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,134 @@
 # Node.js ChangeLog
 
+## 2015-12-09, Version 5.2.0 (Stable), @rvagg
+
+### Notable changes
+
+* **build**:
+  - Add support for Intel's VTune JIT profiling when compiled with `--enable-vtune-profiling`. For more information about VTune, see <https://software.intel.com/en-us/node/544211>. (Chunyang Dai) [#3785](https://github.com/nodejs/node/pull/3785).
+  - Properly enable V8 snapshots by default. Due to a configuration error, snapshots have been kept off by default when the intention is for the feature to be enabled. (Fedor Indutny) [#3962](https://github.com/nodejs/node/pull/3962).
+* **crypto**:
+  - Simplify use of ECDH (Elliptic Curve Diffie-Hellman) objects (created via `crypto.createECDH(curve_name)`) with private keys that are not dynamically generated via `generateKeys()`. The public key is now computed when explicitly setting a private key. Added validity checks to reduce the possibility of computing weak or invalid shared secrets. Also, deprecated the `setPublicKey()` method for ECDH objects as its usage is unnecessary and can lead to inconsistent state. (Michael Ruddy) [#3511](https://github.com/nodejs/node/pull/3511).
+  - Update root certificates from the current list stored maintained by Mozilla NSS. (Ben Noordhuis) [#3951](https://github.com/nodejs/node/pull/3951).
+  - Multiple CA certificates can now be passed with the `ca` option to TLS methods as an array of strings or in a single new-line separated string. (Ben Noordhuis) [#4099](https://github.com/nodejs/node/pull/4099)
+* **tools**: Include a tick processor in core, exposed via the `--prof-process` command-line argument which can be used to process V8 profiling output files generated when using the `--prof` command-line argument. (Matt Loring) [#4021](https://github.com/nodejs/node/pull/4021).
+
+
+### Known issues
+
+* Surrogate pair in REPL can freeze terminal. [#690](https://github.com/nodejs/node/issues/690)
+* Calling `dns.setServers()` while a DNS query is in progress can cause the process to crash on a failed assertion. [#894](https://github.com/nodejs/node/issues/894)
+* `url.resolve` may transfer the auth portion of the url when resolving between two full hosts, see [#1435](https://github.com/nodejs/node/issues/1435).
+* Unicode characters in filesystem paths are not handled consistently across platforms or Node.js APIs. See [#2088](https://github.com/nodejs/node/issues/2088), [#3401](https://github.com/nodejs/node/issues/3401) and [#3519](https://github.com/nodejs/node/issues/3519).
+
+### Commits
+
+* [[`08a3f29fd4`](https://github.com/nodejs/node/commit/08a3f29fd4)] - **buffer**: fix range checking for slowToString (Matt Loring) [#4019](https://github.com/nodejs/node/pull/4019)
+* [[`e3a8e8bba4`](https://github.com/nodejs/node/commit/e3a8e8bba4)] - **buffer**: Prevent Buffer constructor deopt (Bryce Baril) [#4158](https://github.com/nodejs/node/pull/4158)
+* [[`0e18e68324`](https://github.com/nodejs/node/commit/0e18e68324)] - **buffer**: fix writeInt{B,L}E for some neg values (Peter A. Bigot) [#3994](https://github.com/nodejs/node/pull/3994)
+* [[`ab5b529dd2`](https://github.com/nodejs/node/commit/ab5b529dd2)] - **buffer**: default to UTF8 in byteLength() (Tom Gallacher) [#4010](https://github.com/nodejs/node/pull/4010)
+* [[`fcf0e8ebdf`](https://github.com/nodejs/node/commit/fcf0e8ebdf)] - **buffer**: move checkFloat from lib into src (Matt Loring) [#3763](https://github.com/nodejs/node/pull/3763)
+* [[`12649f4496`](https://github.com/nodejs/node/commit/12649f4496)] - **build**: add "--partly-static" build options (Super Zheng) [#4152](https://github.com/nodejs/node/pull/4152)
+* [[`a76d788119`](https://github.com/nodejs/node/commit/a76d788119)] - **build**: update signtool description, add url (Rod Vagg) [#4011](https://github.com/nodejs/node/pull/4011)
+* [[`ed255abdc1`](https://github.com/nodejs/node/commit/ed255abdc1)] - **(SEMVER-MINOR)** **build,src**: add Intel Vtune profiling support (Chunyang Dai) [#3785](https://github.com/nodejs/node/pull/3785)
+* [[`7793c364fc`](https://github.com/nodejs/node/commit/7793c364fc)] - **child_process**: flush consuming streams (Dave) [#4071](https://github.com/nodejs/node/pull/4071)
+* [[`f29c5d6e70`](https://github.com/nodejs/node/commit/f29c5d6e70)] - **configure**: `v8_use_snapshot` should be `true` (Fedor Indutny) [#3962](https://github.com/nodejs/node/pull/3962)
+* [[`da5ac55c83`](https://github.com/nodejs/node/commit/da5ac55c83)] - **(SEMVER-MINOR)** **crypto**: simplify using pre-existing keys with ECDH (Michael Ruddy) [#3511](https://github.com/nodejs/node/pull/3511)
+* [[`cfc97641ee`](https://github.com/nodejs/node/commit/cfc97641ee)] - **crypto**: fix native module compilation with FIPS (Stefan Budeanu) [#4023](https://github.com/nodejs/node/pull/4023)
+* [[`b81b45dabd`](https://github.com/nodejs/node/commit/b81b45dabd)] - **crypto**: update root certificates (Ben Noordhuis) [#3951](https://github.com/nodejs/node/pull/3951)
+* [[`def681a07e`](https://github.com/nodejs/node/commit/def681a07e)] - **crypto**: disable crypto.createCipher in FIPS mode (Stefan Budeanu) [#3754](https://github.com/nodejs/node/pull/3754)
+* [[`ce423f3624`](https://github.com/nodejs/node/commit/ce423f3624)] - **debugger**: introduce exec method for debugger (Jackson Tian)
+* [[`99fd1ec28d`](https://github.com/nodejs/node/commit/99fd1ec28d)] - **deps**: backport 819b40a from V8 upstream (Michaël Zasso) [#3937](https://github.com/nodejs/node/pull/3937)
+* [[`82252b2a17`](https://github.com/nodejs/node/commit/82252b2a17)] - **doc**: add brief Node.js overview to README (wurde) [#4174](https://github.com/nodejs/node/pull/4174)
+* [[`634c5f1f81`](https://github.com/nodejs/node/commit/634c5f1f81)] - **doc**: url.format - true slash postfix behaviour (fansworld-claudio) [#4119](https://github.com/nodejs/node/pull/4119)
+* [[`6f957a70d8`](https://github.com/nodejs/node/commit/6f957a70d8)] - **doc**: s/node.js/Node.js in readme (Rod Vagg) [#3998](https://github.com/nodejs/node/pull/3998)
+* [[`0cd4a52392`](https://github.com/nodejs/node/commit/0cd4a52392)] - **doc**: improve child_process.markdown wording (yorkie) [#4138](https://github.com/nodejs/node/pull/4138)
+* [[`fd5ed6888d`](https://github.com/nodejs/node/commit/fd5ed6888d)] - **doc**: add JungMinu to collaborators (Minwoo Jung) [#4143](https://github.com/nodejs/node/pull/4143)
+* [[`fa0cdf75d9`](https://github.com/nodejs/node/commit/fa0cdf75d9)] - **doc**: add iarna to collaborators (Rebecca Turner) [#4144](https://github.com/nodejs/node/pull/4144)
+* [[`424eb962b1`](https://github.com/nodejs/node/commit/424eb962b1)] - **doc**: add zkat to collaborators (Kat Marchán) [#4142](https://github.com/nodejs/node/pull/4142)
+* [[`85b601224b`](https://github.com/nodejs/node/commit/85b601224b)] - **doc**: add HTTP working group (James M Snell) [#3919](https://github.com/nodejs/node/pull/3919)
+* [[`f4164bd8df`](https://github.com/nodejs/node/commit/f4164bd8df)] - **doc**: update links to use https where possible (jpersson) [#4054](https://github.com/nodejs/node/pull/4054)
+* [[`3169eed1e3`](https://github.com/nodejs/node/commit/3169eed1e3)] - **doc**: add links and backticks around names (jpersson) [#4054](https://github.com/nodejs/node/pull/4054)
+* [[`f3417e2574`](https://github.com/nodejs/node/commit/f3417e2574)] - **doc**: standardize references to node.js in docs (Scott Buchanan) [#4136](https://github.com/nodejs/node/pull/4136)
+* [[`95dd60c657`](https://github.com/nodejs/node/commit/95dd60c657)] - **doc**: reword https.Agent example text (Jan Krems) [#4075](https://github.com/nodejs/node/pull/4075)
+* [[`c61237d3ea`](https://github.com/nodejs/node/commit/c61237d3ea)] - **doc**: fix internal link to child.send() (Luigi Pinca) [#4089](https://github.com/nodejs/node/pull/4089)
+* [[`aaeced915e`](https://github.com/nodejs/node/commit/aaeced915e)] - **doc**: fix the exception description (yorkie) [#3658](https://github.com/nodejs/node/pull/3658)
+* [[`a2b7596ac0`](https://github.com/nodejs/node/commit/a2b7596ac0)] - **doc**: fix color of linked code blocks (jpersson) [#4068](https://github.com/nodejs/node/pull/4068)
+* [[`f3c50f5fb5`](https://github.com/nodejs/node/commit/f3c50f5fb5)] - **doc**: fix rare case of misaligned columns (Roman Reiss) [#3948](https://github.com/nodejs/node/pull/3948)
+* [[`f0a2e2cdec`](https://github.com/nodejs/node/commit/f0a2e2cdec)] - **doc**: message.header duplication correction (Bryan English) [#3997](https://github.com/nodejs/node/pull/3997)
+* [[`b1dfa8bebb`](https://github.com/nodejs/node/commit/b1dfa8bebb)] - **doc**: fix typo in README (Rich Trott) [#4000](https://github.com/nodejs/node/pull/4000)
+* [[`4602e01221`](https://github.com/nodejs/node/commit/4602e01221)] - **doc**: replace sane with reasonable (Lewis Cowper) [#3980](https://github.com/nodejs/node/pull/3980)
+* [[`4849a54386`](https://github.com/nodejs/node/commit/4849a54386)] - **doc**: Adding best practises for crypto.pbkdf2 (Tom Gallacher) [#3290](https://github.com/nodejs/node/pull/3290)
+* [[`77251d99de`](https://github.com/nodejs/node/commit/77251d99de)] - **doc**: numeric flags to fs.open (Carl Lei) [#3641](https://github.com/nodejs/node/pull/3641)
+* [[`f4ca007b42`](https://github.com/nodejs/node/commit/f4ca007b42)] - **doc**: clarify that fs streams expect blocking fd (Carl Lei) [#3641](https://github.com/nodejs/node/pull/3641)
+* [[`26eeae8016`](https://github.com/nodejs/node/commit/26eeae8016)] - **doc**: fix broken references (Alexander Gromnitsky) [#3944](https://github.com/nodejs/node/pull/3944)
+* [[`f90227b0e8`](https://github.com/nodejs/node/commit/f90227b0e8)] - **doc**: move fs.existsSync() deprecation message (Martin Forsberg) [#3942](https://github.com/nodejs/node/pull/3942)
+* [[`bbcb2a2e65`](https://github.com/nodejs/node/commit/bbcb2a2e65)] - **doc**: clarify module loading behavior (cjihrig) [#3920](https://github.com/nodejs/node/pull/3920)
+* [[`0997178037`](https://github.com/nodejs/node/commit/0997178037)] - **doc**: add reference for buffer.inspect() (cjihrig) [#3921](https://github.com/nodejs/node/pull/3921)
+* [[`6c16c40283`](https://github.com/nodejs/node/commit/6c16c40283)] - **doc**: clarify v5.1.1 notable items (Rod Vagg) [#4156](https://github.com/nodejs/node/pull/4156)
+* [[`4c8800c2de`](https://github.com/nodejs/node/commit/4c8800c2de)] - **fs,doc**: use `target` instead of `destination` (yorkie) [#3912](https://github.com/nodejs/node/pull/3912)
+* [[`1f0e8dca8e`](https://github.com/nodejs/node/commit/1f0e8dca8e)] - **installer**: install the tick processor (Matt Loring) [#3032](https://github.com/nodejs/node/pull/3032)
+* [[`e8e4e0718b`](https://github.com/nodejs/node/commit/e8e4e0718b)] - **meta**: remove use of profanity in source (Myles Borins) [#4122](https://github.com/nodejs/node/pull/4122)
+* [[`13834caa28`](https://github.com/nodejs/node/commit/13834caa28)] - **module**: fix column offsets in errors (Tristian Flanagan) [#2867](https://github.com/nodejs/node/pull/2867)
+* [[`8988e1e117`](https://github.com/nodejs/node/commit/8988e1e117)] - **module,repl**: remove repl require() hack (Ben Noordhuis) [#4026](https://github.com/nodejs/node/pull/4026)
+* [[`baac81d95f`](https://github.com/nodejs/node/commit/baac81d95f)] - **net**: add local address/port for better errors (Jan Schär) [#3946](https://github.com/nodejs/node/pull/3946)
+* [[`12754c5dc3`](https://github.com/nodejs/node/commit/12754c5dc3)] - **net**: small code cleanup (Jan Schär) [#3943](https://github.com/nodejs/node/pull/3943)
+* [[`8a5e4345fd`](https://github.com/nodejs/node/commit/8a5e4345fd)] - **node**: s/doNTCallbackX/nextTickCallbackWithXArgs/ (Rod Vagg) [#4167](https://github.com/nodejs/node/pull/4167)
+* [[`0869ef3c55`](https://github.com/nodejs/node/commit/0869ef3c55)] - **(SEMVER-MINOR)** **repl**: allow leading period in multiline input (Zirak) [#3835](https://github.com/nodejs/node/pull/3835)
+* [[`aaab108dfe`](https://github.com/nodejs/node/commit/aaab108dfe)] - **repl**: attach location info to syntax errors (cjihrig) [#4013](https://github.com/nodejs/node/pull/4013)
+* [[`b08126dc9d`](https://github.com/nodejs/node/commit/b08126dc9d)] - **src**: refactor vcbuild configure args creation (Rod Vagg) [#3399](https://github.com/nodejs/node/pull/3399)
+* [[`da3137d0c5`](https://github.com/nodejs/node/commit/da3137d0c5)] - **src**: don't print garbage errors (cjihrig) [#4112](https://github.com/nodejs/node/pull/4112)
+* [[`9e9346fa32`](https://github.com/nodejs/node/commit/9e9346fa32)] - **src**: use GetCurrentProcessId() for process.pid (Ben Noordhuis) [#4163](https://github.com/nodejs/node/pull/4163)
+* [[`d969c0965c`](https://github.com/nodejs/node/commit/d969c0965c)] - **src**: define Is* util functions with macros (cjihrig) [#4118](https://github.com/nodejs/node/pull/4118)
+* [[`458facdf66`](https://github.com/nodejs/node/commit/458facdf66)] - **src**: define getpid() based on OS (cjihrig) [#4146](https://github.com/nodejs/node/pull/4146)
+* [[`7e18f2ec62`](https://github.com/nodejs/node/commit/7e18f2ec62)] - **(SEMVER-MINOR)** **src**: add BE support to StringBytes::Encode() (Bryon Leung) [#3410](https://github.com/nodejs/node/pull/3410)
+* [[`756ab9caad`](https://github.com/nodejs/node/commit/756ab9caad)] - **stream**: be less eager with readable flag (Brian White) [#4141](https://github.com/nodejs/node/pull/4141)
+* [[`8f845ba28a`](https://github.com/nodejs/node/commit/8f845ba28a)] - **stream_wrap**: error if stream has StringDecoder (Fedor Indutny) [#4031](https://github.com/nodejs/node/pull/4031)
+* [[`1c1af81ea0`](https://github.com/nodejs/node/commit/1c1af81ea0)] - **streams**: update .readable/.writable to false (Brian White) [#4083](https://github.com/nodejs/node/pull/4083)
+* [[`1d50819c85`](https://github.com/nodejs/node/commit/1d50819c85)] - **test**: check range fix for slowToString (Sakthipriyan Vairamani) [#4019](https://github.com/nodejs/node/pull/4019)
+* [[`0c2a0dc859`](https://github.com/nodejs/node/commit/0c2a0dc859)] - **test**: skip long path tests on non-Windows (Rafał Pocztarski) [#4116](https://github.com/nodejs/node/pull/4116)
+* [[`8a60aa1303`](https://github.com/nodejs/node/commit/8a60aa1303)] - **test**: don't check the # of chunks in test-http-1.0 (Santiago Gimeno) [#3961](https://github.com/nodejs/node/pull/3961)
+* [[`e84aeec883`](https://github.com/nodejs/node/commit/e84aeec883)] - **test**: mark test-cluster-shared-leak flaky (Rich Trott) [#4162](https://github.com/nodejs/node/pull/4162)
+* [[`b3f3b2e157`](https://github.com/nodejs/node/commit/b3f3b2e157)] - **test**: fix cluster-worker-isdead (Santiago Gimeno) [#3954](https://github.com/nodejs/node/pull/3954)
+* [[`da6be4d31a`](https://github.com/nodejs/node/commit/da6be4d31a)] - **test**: fix time resolution constraint (Gireesh Punathil) [#3981](https://github.com/nodejs/node/pull/3981)
+* [[`9d16729b20`](https://github.com/nodejs/node/commit/9d16729b20)] - **test**: skip instead of fail when mem constrained (Michael Cornacchia) [#3697](https://github.com/nodejs/node/pull/3697)
+* [[`be41eb751b`](https://github.com/nodejs/node/commit/be41eb751b)] - **test**: refactor test-http-exit-delay (Rich Trott) [#4055](https://github.com/nodejs/node/pull/4055)
+* [[`4b43bf0385`](https://github.com/nodejs/node/commit/4b43bf0385)] - **test**: fix flaky test-net-socket-local-address (Rich Trott) [#4109](https://github.com/nodejs/node/pull/4109)
+* [[`cb55c67a00`](https://github.com/nodejs/node/commit/cb55c67a00)] - **test**: improve cluster-disconnect-handles test (Brian White) [#4084](https://github.com/nodejs/node/pull/4084)
+* [[`2b5b127e14`](https://github.com/nodejs/node/commit/2b5b127e14)] - **test**: fix cluster-disconnect-handles flakiness (Santiago Gimeno) [#4009](https://github.com/nodejs/node/pull/4009)
+* [[`430264817b`](https://github.com/nodejs/node/commit/430264817b)] - **test**: add test for repl.defineCommand() (Bryan English) [#3908](https://github.com/nodejs/node/pull/3908)
+* [[`22b0971222`](https://github.com/nodejs/node/commit/22b0971222)] - **test**: eliminate multicast test FreeBSD flakiness (Rich Trott) [#4042](https://github.com/nodejs/node/pull/4042)
+* [[`c50003746b`](https://github.com/nodejs/node/commit/c50003746b)] - **test**: mark test flaky on FreeBSD (Rich Trott) [#4016](https://github.com/nodejs/node/pull/4016)
+* [[`69c95bbdb7`](https://github.com/nodejs/node/commit/69c95bbdb7)] - **test**: move ArrayStream to common (cjihrig) [#4027](https://github.com/nodejs/node/pull/4027)
+* [[`d94a70ec51`](https://github.com/nodejs/node/commit/d94a70ec51)] - **test**: fix test-domain-exit-dispose-again (Julien Gilli) [#3990](https://github.com/nodejs/node/pull/3990)
+* [[`00b839a2b8`](https://github.com/nodejs/node/commit/00b839a2b8)] - **test**: use platform-based timeout for reliability (Rich Trott) [#4015](https://github.com/nodejs/node/pull/4015)
+* [[`054a216b6f`](https://github.com/nodejs/node/commit/054a216b6f)] - **test**: mark cluster-net-send test flaky on windows (Rich Trott) [#4006](https://github.com/nodejs/node/pull/4006)
+* [[`d0621c5649`](https://github.com/nodejs/node/commit/d0621c5649)] - **test**: mark fork regression test flaky on windows (Rich Trott) [#4005](https://github.com/nodejs/node/pull/4005)
+* [[`19ed33df80`](https://github.com/nodejs/node/commit/19ed33df80)] - **test**: skip test if in FreeBSD jail (Rich Trott) [#3995](https://github.com/nodejs/node/pull/3995)
+* [[`a863e8d667`](https://github.com/nodejs/node/commit/a863e8d667)] - **test**: remove flaky status for cluster test (Rich Trott) [#3975](https://github.com/nodejs/node/pull/3975)
+* [[`dd0d15fc47`](https://github.com/nodejs/node/commit/dd0d15fc47)] - **test**: add TAP diagnostic message for retried tests (Rich Trott) [#3960](https://github.com/nodejs/node/pull/3960)
+* [[`1fe4d30efc`](https://github.com/nodejs/node/commit/1fe4d30efc)] - **test**: retry on smartos if ECONNREFUSED (Rich Trott) [#3941](https://github.com/nodejs/node/pull/3941)
+* [[`665a35d45e`](https://github.com/nodejs/node/commit/665a35d45e)] - **test**: address flaky test-http-client-timeout-event (Rich Trott) [#3968](https://github.com/nodejs/node/pull/3968)
+* [[`f9fe0aee53`](https://github.com/nodejs/node/commit/f9fe0aee53)] - **test**: numeric flags to fs.open (Carl Lei) [#3641](https://github.com/nodejs/node/pull/3641)
+* [[`54aafa17af`](https://github.com/nodejs/node/commit/54aafa17af)] - **test**: http complete list of non-concat headers (Bryan English) [#3930](https://github.com/nodejs/node/pull/3930)
+* [[`788541b40c`](https://github.com/nodejs/node/commit/788541b40c)] - **test**: fix race condition in unrefd interval test (Michael Cornacchia) [#3550](https://github.com/nodejs/node/pull/3550)
+* [[`e129d83996`](https://github.com/nodejs/node/commit/e129d83996)] - **test**: skip/replace weak crypto tests in FIPS mode (Stefan Budeanu) [#3757](https://github.com/nodejs/node/pull/3757)
+* [[`bc27379453`](https://github.com/nodejs/node/commit/bc27379453)] - **test**: avoid test timeouts on rpi (Stefan Budeanu) [#3902](https://github.com/nodejs/node/pull/3902)
+* [[`272732e76b`](https://github.com/nodejs/node/commit/272732e76b)] - **test**: fix flaky test-child-process-spawnsync-input (Rich Trott) [#3889](https://github.com/nodejs/node/pull/3889)
+* [[`781f8c0d1e`](https://github.com/nodejs/node/commit/781f8c0d1e)] - **test**: add OS X to module loading error test (Evan Lucas) [#3901](https://github.com/nodejs/node/pull/3901)
+* [[`f99c6363de`](https://github.com/nodejs/node/commit/f99c6363de)] - **test**: module loading error fix solaris #3798 (fansworld-claudio) [#3855](https://github.com/nodejs/node/pull/3855)
+* [[`1279adc756`](https://github.com/nodejs/node/commit/1279adc756)] - **timers**: optimize callback call: bind -> arrow (Andrei Sedoi) [#4038](https://github.com/nodejs/node/pull/4038)
+* [[`80f7f65464`](https://github.com/nodejs/node/commit/80f7f65464)] - **(SEMVER-MINOR)** **tls**: support reading multiple cas from one input (Ben Noordhuis) [#4099](https://github.com/nodejs/node/pull/4099)
+* [[`939f305d56`](https://github.com/nodejs/node/commit/939f305d56)] - **tls_wrap**: slice buffer properly in `ClearOut` (Fedor Indutny) [#4184](https://github.com/nodejs/node/pull/4184)
+* [[`6d4a03d3d2`](https://github.com/nodejs/node/commit/6d4a03d3d2)] - **(SEMVER-MINOR)** **tools**: list missing whitespace/if-one-line cpplint (Ben Noordhuis) [#4099](https://github.com/nodejs/node/pull/4099)
+* [[`1c1c1a0f2b`](https://github.com/nodejs/node/commit/1c1c1a0f2b)] - **(SEMVER-MINOR)** **tools**: add --prof-process flag to node binary (Matt Loring) [#4021](https://github.com/nodejs/node/pull/4021)
+* [[`d7a7d3e6f7`](https://github.com/nodejs/node/commit/d7a7d3e6f7)] - **tools**: update certdata.txt (Ben Noordhuis) [#3951](https://github.com/nodejs/node/pull/3951)
+* [[`1b434e0654`](https://github.com/nodejs/node/commit/1b434e0654)] - **util**: determine object types in C++ (cjihrig) [#4100](https://github.com/nodejs/node/pull/4100)
+* [[`c93e2678f0`](https://github.com/nodejs/node/commit/c93e2678f0)] - **util**: fix constructor/instanceof checks (Brian White) [#3385](https://github.com/nodejs/node/pull/3385)
+* [[`098a3113e1`](https://github.com/nodejs/node/commit/098a3113e1)] - **util**: move .decorateErrorStack to internal/util (Ben Noordhuis) [#4026](https://github.com/nodejs/node/pull/4026)
+* [[`e68ea16c32`](https://github.com/nodejs/node/commit/e68ea16c32)] - **util**: add decorateErrorStack() (cjihrig) [#4013](https://github.com/nodejs/node/pull/4013)
+* [[`c584c3e08f`](https://github.com/nodejs/node/commit/c584c3e08f)] - **util,src**: allow lookup of hidden values (cjihrig) [#3988](https://github.com/nodejs/node/pull/3988)
+
 ## 2015-12-04, Version 5.1.1 (Stable), @rvagg
 
 ### Notable changes