8.3.1
diff --git a/NEWS b/NEWS
index 386a106..2d6a4a7 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,25 @@
+Overview of changes leading to 8.3.1
+Saturday, March 16, 2024
+====================================
+- hb_blob_create_from_file_or_fail() on Windows will now try to interpret the
+  file name as UTF-8 first, and as system code page if it is not valid UTF-8.
+- Fix hb_style_get_value() in fonts with “STAT” table.
+- Properly handle negative offsets in CFF table.
+- Update IANA Language Subtag Registry to 2024-03-07.
+- Subsetter now supports subsetting “BASE” table.
+- Subsetter will update “hhea” font metrics in sync with “OS/2” ones.
+- “--variations” option of “hb-subset” now supports leaving out values that
+  should be unchanged, e.g. “wght=:500:” will change the default and keep max
+  and min unchanged. It also supports “*=drop” to to pin all axes to default
+  location.
+- Fix hb_ot_math_get_glyph_kerning() to match updated “MATH” table spec.
+- Support legacy MacRoman encoding in “cmap” table.
+- Various build fixes.
+- Various subsetting and instancing fixes.
+
+- New API:
+hb_subset_input_pin_all_axes_to_default()
+
 Overview of changes leading to 8.3.0
 Saturday, November 11, 2023
 ====================================
@@ -191,7 +213,7 @@
 ====================================
 - New hb-paint API that is designed mainly to paint “COLRv1” glyphs, but can be
   also used as a unified API to paint any of the glyph representations
-  supported by HarfBuzz (B/W outlines, color layers, or color bitmaps). 
+  supported by HarfBuzz (B/W outlines, color layers, or color bitmaps).
   (Behdad Esfahbod, Matthias Clasen)
 - New hb-cairo API for integrating with cairo graphics library. This is provided
   as a separate harfbuzz-cairo library. (Behdad Esfahbod, Matthias Clasen)
@@ -202,7 +224,7 @@
   https://github.com/harfbuzz/boring-expansion-spec/blob/main/glyf1-cubicOutlines.md
   for spec. (Behdad Esfahbod)
 - Various subsetter improvements. (Garret Rieger, Qunxin Liu, Behdad Esfahbod)
-- Various documentation improvements. 
+- Various documentation improvements.
   (Behdad Esfahbod, Matthias Clasen, Khaled Hosny)
 - Significantly reduced memory use during shaping. (Behdad Esfahbod)
 - Greatly reduced memory use during subsetting “CFF” table. (Behdad Esfahbod)
@@ -946,7 +968,7 @@
   Previously these were shaped using the generalized Arabic shaper. (David Corbett)
 - Fix regression in shaping of U+0B55 ORIYA SIGN OVERLINE. (David Corbett)
 - Update language tags. (David Corbett)
-- Variations: reduce error: do not round each interpolated delta. (Just van Rossum) 
+- Variations: reduce error: do not round each interpolated delta. (Just van Rossum)
 - Documentation improvements. (Khaled Hosny, Nathan Willis)
 - Subsetter improvements: subsets most, if not all, lookup types now. (Garret Rieger, Qunxin Liu)
 - Fuzzer-found fixes and other improvements when memory failures happen. (Behdad)
diff --git a/configure.ac b/configure.ac
index 0d5b3d9..d7ac933 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 AC_PREREQ([2.64])
 AC_INIT([HarfBuzz],
-        [8.3.0],
+        [8.3.1],
         [https://github.com/harfbuzz/harfbuzz/issues/new],
         [harfbuzz],
         [http://harfbuzz.org/])
diff --git a/docs/harfbuzz-docs.xml b/docs/harfbuzz-docs.xml
index 59bf821..1700a34 100644
--- a/docs/harfbuzz-docs.xml
+++ b/docs/harfbuzz-docs.xml
@@ -120,6 +120,7 @@
       <index id="api-index-full"><title>API Index</title><xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include></index>
       <index id="deprecated-api-index"><title>Index of deprecated API</title><xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include></index>
 
+      <index id="api-index-8-3-1"><title>Index of new symbols in 8.3.1</title><xi:include href="xml/api-index-8.3.1.xml"><xi:fallback /></xi:include></index>
       <index id="api-index-8-2-0"><title>Index of new symbols in 8.2.0</title><xi:include href="xml/api-index-8.2.0.xml"><xi:fallback /></xi:include></index>
       <index id="api-index-8-1-0"><title>Index of new symbols in 8.1.0</title><xi:include href="xml/api-index-8.1.0.xml"><xi:fallback /></xi:include></index>
       <index id="api-index-8-0-0"><title>Index of new symbols in 8.0.0</title><xi:include href="xml/api-index-8.0.0.xml"><xi:fallback /></xi:include></index>
diff --git a/meson.build b/meson.build
index 7127315..a5af3b8 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('harfbuzz', 'c', 'cpp',
   meson_version: '>= 0.55.0',
-  version: '8.3.0',
+  version: '8.3.1',
   default_options: [
     'cpp_eh=none',          # Just to support msvc, we are passing -fno-exceptions also anyway
     # 'cpp_rtti=false',     # Do NOT enable, wraps inherit it and ICU needs RTTI
diff --git a/src/hb-subset-input.cc b/src/hb-subset-input.cc
index 957d79d..68a3e77 100644
--- a/src/hb-subset-input.cc
+++ b/src/hb-subset-input.cc
@@ -429,7 +429,7 @@
  *
  * Return value: `true` if success, `false` otherwise
  *
- * XSince: REPLACEME
+ * Since: 8.3.1
  **/
 HB_EXTERN hb_bool_t
 hb_subset_input_pin_all_axes_to_default (hb_subset_input_t  *input,
diff --git a/src/hb-version.h b/src/hb-version.h
index b08dd1f..d90e363 100644
--- a/src/hb-version.h
+++ b/src/hb-version.h
@@ -53,14 +53,14 @@
  *
  * The micro component of the library version available at compile-time.
  */
-#define HB_VERSION_MICRO 0
+#define HB_VERSION_MICRO 1
 
 /**
  * HB_VERSION_STRING:
  *
  * A string literal containing the library version available at compile-time.
  */
-#define HB_VERSION_STRING "8.3.0"
+#define HB_VERSION_STRING "8.3.1"
 
 /**
  * HB_VERSION_ATLEAST: