Prepare 1.2.1 release (#13088)

* Prepare 1.2.1 release * update renos * move remaining renos * Update releasenotes/notes/1.2/fix-2q-basis-decomposer-non-std-kak-gate-edc69ffb5d9ef302.yaml --------- Co-authored-by: Elena Peña Tapia <57907331+ElePT@users.noreply.github.com>
Qiskit · Sep 12, 2024 · cb486e6 · cb486e6
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diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -3,7 +3,7 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-version = "1.2.0"
+version = "1.2.1"
 edition = "2021"
 rust-version = "1.70"  # Keep in sync with README.md and rust-toolchain.toml.
 license = "Apache-2.0"

diff --git a/docs/conf.py b/docs/conf.py
@@ -32,7 +32,7 @@
 # The short X.Y version
 version = "1.2"
 # The full version, including alpha/beta/rc tags
-release = "1.2.0"
+release = "1.2.1"
 
 language = "en"
 

diff --git a/qiskit/VERSION.txt b/qiskit/VERSION.txt
@@ -1 +1 @@
-1.2.0
+1.2.1
diff --git a/...just-neato-settings-3adcc0ae9e245ce9.yaml → ...just-neato-settings-3adcc0ae9e245ce9.yaml b/...just-neato-settings-3adcc0ae9e245ce9.yaml → ...just-neato-settings-3adcc0ae9e245ce9.yaml
@@ -1,6 +1,6 @@
 ---
 fixes:
   - |
-    Fixes an issue with the visualizations of some backends/coupling maps that showed as folded on their own. The
+    Fixed an issue with the visualizations of some backends/coupling maps that showed as folded on their own. The
     `default ``neato`` setting <https://graphviz.org/docs/layouts/neato/>`_ works well in most cases. However,
     ``prism`` overlap returns a more regular layout for other scenarios.
diff --git a/...rametric-controlled-1a495f6f7ce89397.yaml → ...rametric-controlled-1a495f6f7ce89397.yaml b/...rametric-controlled-1a495f6f7ce89397.yaml → ...rametric-controlled-1a495f6f7ce89397.yaml
diff --git a/releasenotes/notes/1.2/fix-2q-basis-decomposer-non-std-kak-gate-edc69ffb5d9ef302.yaml b/releasenotes/notes/1.2/fix-2q-basis-decomposer-non-std-kak-gate-edc69ffb5d9ef302.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixed a bug in :class:`.TwoQubitBasisDecomposer` where the Rust-based code
+    would panic if the given KAK gate was not a default version of the standard gates (for example, using ``CXGate(ctrl_state=0)``).
+    Fixed `#12998 <https://github.com/Qiskit/qiskit/issues/12998>`__.
diff --git a/...nstructionDurations-b47a9770b424d7a0.yaml → ...nstructionDurations-b47a9770b424d7a0.yaml b/...nstructionDurations-b47a9770b424d7a0.yaml → ...nstructionDurations-b47a9770b424d7a0.yaml
@@ -2,4 +2,4 @@
 fixes:
   - |
     Fixed a bug where :meth:`.InstructionDurations.from_backend` did not work for :class:`.BackendV2` backends.
-    Fixed `#12760 <https://github.com/Qiskit/qiskit/issues/12760>`.
+    Fixed `#12760 <https://github.com/Qiskit/qiskit/issues/12760>`__.
diff --git a/...s/notes/fix-cu-rust-6464b6893ecca1b3.yaml → ...tes/1.2/fix-cu-rust-6464b6893ecca1b3.yaml b/...s/notes/fix-cu-rust-6464b6893ecca1b3.yaml → ...tes/1.2/fix-cu-rust-6464b6893ecca1b3.yaml
@@ -2,7 +2,7 @@
 fixes:
   - |
     Fixed the definition of the :class:`.CUGate` matrix in Rust-space. 
-    While this was not noticable while handling the :class:`.CUGate` purely on 
+    While this was not noticable when handling the :class:`.CUGate` purely on the
     Python side, this had knock-on effects when transpiler passes were using the 
     Rust representation, such as could happen in :class:`.Consolidate2qBlocks`.
     Fixed `#13118 <https://github.com/Qiskit/qiskit/issues/13118>`__.

diff --git a/...notes/fix-hoare-opt-56d1ca6a07f07a2d.yaml → ...s/1.2/fix-hoare-opt-56d1ca6a07f07a2d.yaml b/...notes/fix-hoare-opt-56d1ca6a07f07a2d.yaml → ...s/1.2/fix-hoare-opt-56d1ca6a07f07a2d.yaml
@@ -3,3 +3,4 @@ fixes:
   - |
     Fixed a bug in :class:`.HoareOptimizer` where a controlled gate was simplified
     by removing its controls but the new gate was not handled correctly.
+    Fixed `#13079 <https://github.com/Qiskit/qiskit/issues/13079>`__.
diff --git a/releasenotes/notes/1.2/fix-negative-seed-pm-2813a62a020da115.yaml b/releasenotes/notes/1.2/fix-negative-seed-pm-2813a62a020da115.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    :func:`.generate_preset_pass_manager` now correctly raises an exception,
+    if ``seed_transpiler`` is set to an invalid value (i.e., it is not a non-negative integer).
+    Fixed `#12938 <https://github.com/Qiskit/qiskit/issues/12938>`__.
diff --git a/...-sabre-releasevalve-7f9af9bfc0482e04.yaml → ...-sabre-releasevalve-7f9af9bfc0482e04.yaml b/...-sabre-releasevalve-7f9af9bfc0482e04.yaml → ...-sabre-releasevalve-7f9af9bfc0482e04.yaml
@@ -1,7 +1,7 @@
 ---
 fixes:
   - |
-    Fixed an edge case in :class:`.SabreLayout`, where in rare cases on large
+    Fixed an edge case in :class:`.SabreLayout`, where, in rare cases on large
     devices and challenging circuits, the routing would fail. This was due to the 
     release valve making more than one two-qubit gate routable, where only one was expected.
     Fixed `#13081 <https://github.com/Qiskit/qiskit/issues/13081>`__.
diff --git a/releasenotes/notes/1.2/fix-split-2q-unitaries-custom-gate-d10f7670a35548f4.yaml b/releasenotes/notes/1.2/fix-split-2q-unitaries-custom-gate-d10f7670a35548f4.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixed a bug in :class:`.Split2QUnitaries` where it would fail to run on circuits
+    with custom :class:`.Gate` objects that did not implement ``__array__``.
+    See `#12970 <https://github.com/Qiskit/qiskit/issues/12970>`__.
diff --git a/...stateprep-normalize-a8057c339ba619bd.yaml → ...stateprep-normalize-a8057c339ba619bd.yaml b/...stateprep-normalize-a8057c339ba619bd.yaml → ...stateprep-normalize-a8057c339ba619bd.yaml
diff --git a/...tes/fix-synth-qregs-7662681c0ff02511.yaml → ...1.2/fix-synth-qregs-7662681c0ff02511.yaml b/...tes/fix-synth-qregs-7662681c0ff02511.yaml → ...1.2/fix-synth-qregs-7662681c0ff02511.yaml
@@ -3,5 +3,6 @@ fixes:
   - |
     Fixed a bug where various synthesis methods created circuits without quantum or
     classical registers. This also affected functions that internally used the synthesis
-    methods, such as :meth:`.Clifford.to_circuit`.
+    methods, such as :meth:`.Clifford.to_circuit`. While the circuits were valid, this could
+    cause issues when comparing circuits with registers.
     Fixed `#13041 <https://github.com/Qiskit/qiskit/issues/13041>`__.
diff --git a/releasenotes/notes/1.2/fix_initialize_gates_to_uncompute-d0dba6a642d07f30.yaml b/releasenotes/notes/1.2/fix_initialize_gates_to_uncompute-d0dba6a642d07f30.yaml
@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fixed a bug that caused the method :meth:`.Initialize.gates_to_uncompute` fail.
+    Fixed `#12969 <https://github.com/Qiskit/qiskit/issues/12969>`__.
diff --git a/releasenotes/notes/1.2/prepare-1.2.1-511ae054e7db7e41.yaml b/releasenotes/notes/1.2/prepare-1.2.1-511ae054e7db7e41.yaml
@@ -0,0 +1,3 @@
+---
+prelude: >
+    Qiskit 1.2.1 is a minor bugfix release for the 1.2 series.
diff --git a/...es/restrict-split2q-d51d840cc7a7a482.yaml → ....2/restrict-split2q-d51d840cc7a7a482.yaml b/...es/restrict-split2q-d51d840cc7a7a482.yaml → ....2/restrict-split2q-d51d840cc7a7a482.yaml
diff --git a/releasenotes/notes/fix-2q-basis-decomposer-non-std-kak-gate-edc69ffb5d9ef302.yaml b/releasenotes/notes/fix-2q-basis-decomposer-non-std-kak-gate-edc69ffb5d9ef302.yaml
diff --git a/releasenotes/notes/fix-negative-seed-pm-2813a62a020da115.yaml b/releasenotes/notes/fix-negative-seed-pm-2813a62a020da115.yaml
diff --git a/releasenotes/notes/fix-split-2q-unitaries-custom-gate-d10f7670a35548f4.yaml b/releasenotes/notes/fix-split-2q-unitaries-custom-gate-d10f7670a35548f4.yaml
diff --git a/releasenotes/notes/fix_initialize_gates_to_uncompute-d0dba6a642d07f30.yaml b/releasenotes/notes/fix_initialize_gates_to_uncompute-d0dba6a642d07f30.yaml