diff --git a/doc/generic/pgf/ChangeLog b/doc/generic/pgf/ChangeLog
index 4e3c19950..a7ac81e91 100644
--- a/doc/generic/pgf/ChangeLog
+++ b/doc/generic/pgf/ChangeLog
@@ -1,3 +1,115 @@
+2021-03-02 Henri Menke
+
+    - Release 3.1.9
+
+2021-03-02 Henri Menke
+
+    - Merge pull request #996 from muzimuzhi/dvips-blend-mode
+
+2021-02-28 muzimuzhi
+
+    - dvips: fix displacement after blend group, #995
+
+2021-02-24 muzimuzhi
+
+    - Revert "syntax is similar to METAPOST not METAFONT"
+
+2021-02-23 muzimuzhi
+
+    - Merge pull request #994 from itmm/master
+
+2021-02-22 Timm Knape
+
+    - syntax is similar to METAPOST not METAFONT
+
+2021-02-14 Henri Menke
+
+    - Merge pull request #992 from joel-coffman/dev/fix-code-2-args-documentation
+
+2021-02-13 Joel Coffman
+
+    - Correct documentation for .code 2 args second arg
+
+2021-01-22 Henri Menke
+
+    - Merge pull request #987 from muzimuzhi/doc-typo
+
+2021-01-22 muzimuzhi
+
+    - doc: fix typo #986
+
+2021-01-14 muzimuzhi
+
+    - Merge pull request #981 from muzimuzhi/fix-tikz@handle
+
+2021-01-14 muzimuzhi
+
+    - Apply suggestions from code review
+
+2021-01-13 muzimuzhi
+
+    - tikz: fix uses of \pgfutil@switch
+
+2021-01-11 Henri Menke
+
+    - Merge pull request #979 from muzimuzhi/doc-install-only
+
+2021-01-11 muzimuzhi
+
+    - doc/fpu: fpu: mark /pgf/fpu/install only as not experimental
+
+2020-12-25 Henri Menke
+
+    - Fix and document dim() #964
+
+2021-01-04 Henri Menke
+
+    - Merge pull request #976 from muzimuzhi/tikz-math
+
+2021-01-05 muzimuzhi
+
+    - tikz/math: gobble spaces between for list and loop body
+
+2021-01-04 Henri Menke
+
+    - Merge pull request #970 from muzimuzhi/reset-tikz@expandcount
+
+2021-01-05 muzimuzhi
+
+    - tikz: retry to handle \relax on path #966
+
+2021-01-04 Henri Menke
+
+    - tikz/calendar: switch over \pgf@let@token in \tikz@lib@cal@handle
+
+2021-01-02 Henri Menke
+
+    - Merge pull request #973 from schtandard/spurious_show
+
+2021-01-02 schtandard
+
+    - Remove a spurious \show
+
+2021-01-02 Henri Menke
+
+    - Merge pull request #972 from alisaaalehi/patch-1
+
+2021-01-02 Ali Salehi
+
+    - doc: fix typo
+
+2021-01-01 Henri Menke
+
+    - tikz: switch over \pgf@let@token in \tikz@handle
+
+2020-12-29 Henri Menke
+
+    - tikz: improve \tikz@expandcount handling
+
+2020-12-29 muzimuzhi
+
+    - tikz: reset \tikz@expandcount more frequent #969
+
 2020-12-27 Henri Menke
 
     - Release 3.1.8b
diff --git a/doc/generic/pgf/RELEASE_NOTES.md b/doc/generic/pgf/RELEASE_NOTES.md
index 6fc188431..9c0c7d00f 100644
--- a/doc/generic/pgf/RELEASE_NOTES.md
+++ b/doc/generic/pgf/RELEASE_NOTES.md
@@ -1,5 +1,4 @@
-Hotfix for handling of TeX conditionals on a path.  We can't forward \relax and
-frozen \relax through the parser because there is existing code that relies on
-this.
+# Bug fixes
 
-The recommendation is to use expandable conditionals where possible.
+This release introduces a fix for blend mode with the dvips driver and
+improvements for handling expandable material that appears on a path.