chore: update changelog for 26.2 (#1161)

* chore: update changelog for 26.2

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>

* Update pull request references in CHANGELOG

* Update CHANGELOG.rst

Co-authored-by: r266-tech <r2668940489@gmail.com>

* Update changelog for pickle-safety enhancements

Consolidate pickle-safety updates for Version, Specifier, SpecifierSet, Tag, Marker, and Requirement, ensuring backward compatibility with earlier pickles.

* Add entry for new pickle guarantees test

* Reformat long line

---------

Signed-off-by: Henry Schreiner <henryfs@princeton.edu>
Co-authored-by: r266-tech <r2668940489@gmail.com>

Author: henryiii

CHANGELOG.rst

@@ -6,16 +6,26 @@ Changelog
 
 Fixes:
 
-* Make ``Version`` pickle-safe and backward-compatible with pickles created
-  before 26.1 that reference the removed ``packaging._structures`` module
-  (:pull:`1163`)
+* Fix incorrect sysconfig var name for pyemscripten in (:pull:`1160`)
+* Make ``Version``, ``Specifier``, ``SpecifierSet``, ``Tag``, ``Marker``, and ``Requirement`` pickle-safe
+  and backward-compatible with pickles created in 25.0-26.1 (including references to the removed
+  ``packaging._structures`` module) (:pull:`1163`, :pull:`1168`, :pull:`1170`, :pull:`1171`)
+
+Documentation:
+
+* Add errors section and fix missing details in (:pull:`1159`)
+
+Internal:
+
+* Enable the auditor persona on zizmor in (:pull:`1158`)
+* Test new pickle gaurentees in (:pull:`1074`)
 
 26.1 - 2026-04-14
 ~~~~~~~~~~~~~~~~~
 
 Features:
 
-* PEP 783: add handling for Emscripten wheel tags in (:pull:`804`)
+* PEP 783: add handling for Emscripten wheel tags in (:pull:`804`) (old name used in implementation, fixed in next release)
 * PEP 803: add handling for the ``abi3.abi3t`` free-threading tag in (:pull:`1099`)
 * PEP 723: add ``packaging.dependency_groups`` module, based on the ``dependency-groups`` package in (:pull:`1065`)
 * Add the ``packaging.direct_url`` module in (:pull:`944`)