diff --git a/changelog.txt b/changelog.txt
@@ -1,3 +1,107 @@
+[0.26.0]
+
+ * Implement spec changes for list items:
+ - Empty list items cannot interrupt paragraphs.
+ - Ordered lists cannot interrupt paragraphs unless
+ they start with 1.
+ - Removed "two blank lines break out of a list" feature.
+ * Fix sourcepos for blockquotes (#142).
+ * Fix sourcepos for atx headers (#141).
+ * Fix ATX headers and thematic breaks to allow tabs as well as spaces.
+ * Fix `chunk_set_cstr` with suffix of current string (#139,
+ Nick Wellnhofer). It's possible that `cmark_chunk_set_cstr` is called
+ with a substring (suffix) of the current string. Delay freeing of the
+ chunk content to handle this case correctly.
+ * Export targets on installation (Jonathan Müller).
+ This allows using them in other cmake projects.
+ * Fix cmake warning about CMP0048 (Jonathan Müller).
+ * commonmark renderer: Ensure we don't have a blank line
+ before a code block when it's the first thing in a list
+ item.
+ * Change parsing of strong/emph in response to spec changes.
+ `process_emphasis` now gets better results in corner cases.
+ The change is this: when considering matches between an interior
+ delimiter run (one that can open and can close) and another delimiter
+ run, we require that the sum of the lengths of the two delimiter
+ runs mod 3 is not 0.
+ * Ported Robin Stocker's changes to link parsing in jgm/commonmark#101.
+ This uses a separate stack for brackets, instead of putting them on the
+ delimiter stack. This avoids the need for looking through the delimiter
+ stack for the next bracket.
+ * `cmark_reference_lookup`: Return NULL if reference is null string.
+ * Fix character type detection in `commonmark.c` (Nick Wellnhofer).
+ Fixes test failures on Windows and undefined behavior.
+ - Implement `cmark_isalpha`.
+ - Check for ASCII character before implicit cast to char.
+ - Use internal ctype functions in `commonmark.c`.
+ * Better documentation of memory-freeing responsibilities.
+ in `cmark.h` and its man page (#124).
+ * Use library functions to insert nodes in emphasis/link processing.
+ Previously we did this manually, which introduces many
+ places where errors can creep in.
+ * Correctly handle list marker followed only by spaces.
+ Previously when a list marker was followed only by spaces,
+ cmark expected the following content to be indented by
+ the same number of spaces. But in this case we should
+ treat the line just like a blank line and set list padding
+ accordingly.
+ * Fixed a number of issues relating to line wrapping.
+ - Extend `CMARK_OPT_NOBREAKS` to all renderers and add `--nobreaks`.
+ - Do not autowrap, regardless of width parameter, if
+ `CMARK_OPT_NOBREAKS` is set.
+ - Fixed `CMARK_OPT_HARDBREAKS` for LaTeX and man renderers.
+ - Ensure that no auto-wrapping occurs if
+ `CMARK_OPT_NOBREAKS` is enabled, or if output is CommonMark and
+ `CMARK_OPT_HARDBREAKS` is enabled.
+ * Set stdin to binary mode on Windows (Nick Wellnhofer, #113).
+ This fixes EOLs when reading from stdin.
+ * Add library option to render softbreaks as spaces (Pavlo
+ Kapyshin). Note that the `NOBREAKS` option is HTML-only
+ * renderer: `no_linebreaks` instead of `no_wrap`.
+ We generally want this option to prohibit any breaking
+ in things like headers (not just wraps, but softbreaks).
+ * Coerce `realurllen` to `int`. This is an alternate solution for pull
+ request #132, which introduced a new warning on the comparison
+ (Benedict Cohen).
+ * Remove unused variable `link_text` (Mathiew Duponchelle).
+ * Improved safety checks in buffer (Vicent Marti).
+ * Add new interface allowing specification of custom memory allocator
+ for nodes (Vicent Marti). Added `cmark_node_new_with_mem`,
+ `cmark_parser_new_with_mem`, `cmark_mem` to API.
+ * Reduce storage size for nodes by using bit flags instead of
+ separate booleans (Vicent Marti).
+ * config: Add `SSIZE_T` compat for Win32 (Vicent Marti).
+ * cmake: Global handler for OOM situations (Vicent Marti).
+ * Add tests for memory exhaustion (Vicent Marti).
+ * Document in man page and public header that one should use the same
+ memory allocator for every node in a tree.
+ * Fix ctypes in Python FFI calls (Nick Wellnhofer). This didn't cause
+ problems so far because all types are 32-bit on 32-bit systems and
+ arguments are passed in registers on x86-64. The wrong types could cause
+ crashes on other platforms, though.
+ * Remove spurious failures in roundtrip tests. In the commonmark writer we
+ separate lists, and lists and indented code, using a dummy HTML comment.
+ So in evaluating the round-trip tests, we now strip out
+ these comments. We also normalize HTML to avoid issues
+ having to do with line breaks.
+ * Add 2016 to copyright (Kevin Burke).
+ * Added `to_commonmark` in `test/cmark.py` (for round-trip tests).
+ * `spec_test.py` - parameterize `do_test` with converter.
+ * `spec_tests.py`: exit code is now sum of failures and errors.
+ This ensures that a failing exit code will be given when
+ there are errors, not just with failures.
+ * Fixed round trip tests. Previously they actually ran
+ `cmark` instead of the round-trip version, since there was a bug in
+ setting the ROUNDTRIP variable (#131).
+ * Added new `roundtrip_tests.py`. This replaces the old use of simple shell
+ scripts. It is much faster, and more flexible. (We will be able
+ to do custom normalization and skip certain tests.)
+ * Fix tests under MinGW (Nick Wellnhofer).
+ * Fix leak in `api_test` (Mathieu Duponchelle).
+ * Makefile: have leakcheck stop on first error instead of going through
+ all the formats and options and probably getting the same output.
+ * Add regression tests (Nick Wellnhofer).
+
[0.25.2]
* Open files in binary mode (#113, Nick Wellnhofer). Now that cmark