Release prep for 1.0.0b1 and 1.2.0

Author: benjeffery

c/CHANGELOG.rst

@@ -1,5 +1,5 @@
 --------------------
-[1.2.0] - 2025-XX-XX
+[1.2.0] - 2025-09-24
 --------------------
 
 **Breaking changes**
@@ -14,15 +14,6 @@
   compatible with the correct mutation parent.
   (:user:`benjeffery`, :issue:`2729`, :issue:`2732`, :pr:`3212`).
 
-- Mutations returned by ``tsk_treeseq_get_mutation`` now include pre-computed
-  ``inherited_state`` and ``inherited_state_length`` fields. The inherited state
-  is computed during tree sequence initialization and represents the state that
-  existed at the site before each mutation occurred (either the ancestral state
-  if the mutation is the root mutation or the derived state of the parent mutation).
-  Note that this breaks ABI compatibility due to the addition of these fields
-  to the ``tsk_mutation_t`` struct.
-  (:user:`benjeffery`, :pr:`3277`, :issue:`2631`).
-
 **Features**
 
 - Add ``TSK_TS_INIT_COMPUTE_MUTATION_PARENTS`` to ``tsk_treeseq_init``
@@ -41,6 +32,16 @@
   tree sequence is certainly known to be valid.
   (:user:`benjeffery`, :pr:`3212`).
 
+- Mutations returned by ``tsk_treeseq_get_mutation`` now include pre-computed
+  ``inherited_state`` and ``inherited_state_length`` fields. The inherited state
+  is computed during tree sequence initialization and represents the state that
+  existed at the site before each mutation occurred (either the ancestral state
+  if the mutation is the root mutation or the derived state of the parent mutation).
+  Note that this breaks ABI compatibility due to the addition of these fields
+  to the ``tsk_mutation_t`` struct.
+  (:user:`benjeffery`, :pr:`3277`, :issue:`2631`).
+
+
 
 --------------------
 [1.1.4] - 2025-03-31

c/VERSION.txt

@@ -1 +1 @@
-1.1.4
+1.2.0

c/tskit/core.h

@@ -147,12 +147,12 @@ sizes and types of externally visible structs.
 The library minor version. Incremented when non-breaking backward-compatible changes
 to the API or ABI are introduced, i.e., the addition of a new function.
 */
-#define TSK_VERSION_MINOR   1
+#define TSK_VERSION_MINOR   2
 /**
 The library patch version. Incremented when any changes not relevant to the
 to the API or ABI are introduced, i.e., internal refactors of bugfixes.
 */
-#define TSK_VERSION_PATCH   4
+#define TSK_VERSION_PATCH   0
 /** @} */
 
 /*

python/CHANGELOG.rst

@@ -1,6 +1,6 @@
---------------------
-[0.6.5] - 2025-0X-XX
---------------------
+----------------------
+[1.0.0b1] - 2025-09-24
+----------------------
 
 **Breaking Changes**
 

python/tests/test_lowlevel.py

@@ -4863,7 +4863,7 @@ def test_kastore_version(self):
 
     def test_tskit_version(self):
         version = _tskit.get_tskit_version()
-        assert version == (1, 1, 4)
+        assert version == (1, 2, 0)
 
     def test_tskit_version_file(self):
         maj, min_, patch = _tskit.get_tskit_version()

python/tskit/_version.py

@@ -1,4 +1,4 @@
 # Definitive location for the version number.
 # During development, should be x.y.z.devN
 # For beta should be x.y.zbN
-tskit_version = "0.6.5.dev0"
+tskit_version = "1.0.0b1"