diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index d9a5fbfbf..76ceea105 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -2,7 +2,7 @@
 
 Thank you for helping improve CDT++.
 
-CDT++ v1.0.0-rc2 is the release candidate for the final C++23 release, v1.0.0, after which this repository will be
+CDT++ v1.0.0-rc3 is the release candidate for the final C++23 release, v1.0.0, after which this repository will be
 archived. The project
 is maintained as a scientific reference implementation and regression oracle for
 [causal-triangulations](https://github.com/acgetchell/causal-triangulations), its supported Rust successor. The
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 631d42cd5..1e5637d20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,8 +5,94 @@ All notable changes to CDT++ are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.0-rc3] - 2026-07-28
+
+### Added
+
+- Restore optional parallel insertion and removal [`d4dabbe`](https://github.com/acgetchell/CDT-plusplus/commit/d4dabbe2fc24a2b98864ae1cd5ca720432dc9418)
+
+- Add value-oriented move-run orchestration [`abfa888`](https://github.com/acgetchell/CDT-plusplus/commit/abfa888b33ace3c63efa85e475391be3691ba011)
+
+- [**breaking**] Add invariant-bearing move preparation [`e2f7d70`](https://github.com/acgetchell/CDT-plusplus/commit/e2f7d70ae819d3f9e3ae8eeda83080d22fa4da5d)
+
+- [**breaking**] Modernize the CGAL 6.2 integration boundary [`ae7a39b`](https://github.com/acgetchell/CDT-plusplus/commit/ae7a39b74dcf9ba9a45a40810e9de033204f3f3e)
+
+- [**breaking**] Finalize parallel triangulation support [`862637a`](https://github.com/acgetchell/CDT-plusplus/commit/862637ae0be485f36816a346f3c7ede560371a82)
+
+- [**breaking**] Publish deterministic C++ oracle fixtures [`ec53dfa`](https://github.com/acgetchell/CDT-plusplus/commit/ec53dfaf3307e7a862ebc0994827a2b4974f52a7)
+
+### Changed
+
+- [**breaking**] Normalize public declarations under cdt [`a02a732`](https://github.com/acgetchell/CDT-plusplus/commit/a02a732267a02860c705dc32f94284f544d02888)
+
+- Make MoveAlways replay checks deterministic [`d7fa637`](https://github.com/acgetchell/CDT-plusplus/commit/d7fa637abf03d9afb892d48f7119feb8c3580fb5)
+
+- Own move-run callbacks by value [`f59c06f`](https://github.com/acgetchell/CDT-plusplus/commit/f59c06f159cd1b688108e2c3f77afb0cd1d186db)
+
+- Make seeded replay fixtures cross-platform [`3c322ee`](https://github.com/acgetchell/CDT-plusplus/commit/3c322ee242a1d3b2e4d475196950d2dd6ad35c4c)
+
+- Make producer path assertion cross-platform [`390adf3`](https://github.com/acgetchell/CDT-plusplus/commit/390adf3bd7b34d310d9092e8cb4305ce397f3b90)
+
+### Fixed
+
+- Generate GCC 16 reports with LCOV 2.5 [`324a2aa`](https://github.com/acgetchell/CDT-plusplus/commit/324a2aa82a8cfa646827229b959981ec7258fa2d)
+
+- Install LCOV documentation dependencies [`42fd262`](https://github.com/acgetchell/CDT-plusplus/commit/42fd2629aa71931b4184fd1fdc72ae5daabf7665)
+
+- Support pkgx-backed IDE environments [`3ce8780`](https://github.com/acgetchell/CDT-plusplus/commit/3ce8780e082760572740b0695606188e9d40ef3e)
+
+- Retain function data during LCOV capture [`898a453`](https://github.com/acgetchell/CDT-plusplus/commit/898a4538bf47e87d656ecf447be0c6ada07b5a8e)
+
+- Bound GCC branch inconsistencies [`c7d6a35`](https://github.com/acgetchell/CDT-plusplus/commit/c7d6a353d4684a0ecf7024c946d06cedce3fd05a)
+
+- Keep oneTBB out of ThreadSanitizer [`35b241e`](https://github.com/acgetchell/CDT-plusplus/commit/35b241e6a3358fd818febf1a748092a019301163)
+
+- Harden parallel build and provenance [`6ef7dd6`](https://github.com/acgetchell/CDT-plusplus/commit/6ef7dd62c1d1a71bb834611a4a89a15a47f7de57)
+
+- Resolve pkgx certificate bundles before vcpkg [`a123ab8`](https://github.com/acgetchell/CDT-plusplus/commit/a123ab88ceb0a07f3d7165a30f718285e33c3f17)
+
+- Restore CodeQL extraction and bound parallel builds [`56f13cd`](https://github.com/acgetchell/CDT-plusplus/commit/56f13cdcf5bd602e59921a3c3af635f611899d4f)
+
+- Require fresh fixture provenance [`6972970`](https://github.com/acgetchell/CDT-plusplus/commit/6972970c77248c3700661b8293f602f58a1deed1)
+
+- Stabilize cross-platform validation [`b0c3169`](https://github.com/acgetchell/CDT-plusplus/commit/b0c3169b90111da99731459155490ffc5ed50544)
+
+- Stabilize Windows and Semgrep validation [`b282c0b`](https://github.com/acgetchell/CDT-plusplus/commit/b282c0bc126f9d0fcc8bddc248ddd149d1144b4b)
+
+- Stabilize cached builds and action policy validation [`930238a`](https://github.com/acgetchell/CDT-plusplus/commit/930238ab99aff4dfc90d3834a8eefe99f1c57966)
+
+- Enforce action policy on nested paths [`745d402`](https://github.com/acgetchell/CDT-plusplus/commit/745d4029b5fb5258ae69617b2d393df7169bccd1)
+
+- Enforce action policy on shorthand steps [`406a482`](https://github.com/acgetchell/CDT-plusplus/commit/406a4827230459efe2026395dde11dab8cf7889c)
+
+### Maintenance
+
+- Suppress ShellCheck for Zsh path expansion [`189cc0d`](https://github.com/acgetchell/CDT-plusplus/commit/189cc0d33529ef2a9fcde0e3e02479b134a7e881)
+
+- Bump actions/checkout from 7.0.0 to 7.0.1 [`397e0b4`](https://github.com/acgetchell/CDT-plusplus/commit/397e0b40ccc514edb187420451206f4d0f27b21a)
+
+- Bump taiki-e/install-action from 2.83.2 to 2.83.4 [`30c83fd`](https://github.com/acgetchell/CDT-plusplus/commit/30c83fd98861b777e7071522beccab1192911275)
+
+- Bump github/codeql-action/init from 4.37.0 to 4.37.1 [`fd04186`](https://github.com/acgetchell/CDT-plusplus/commit/fd04186063ddd0504ba66e6cf5c10a3497895b4a)
+
+- Bump github/codeql-action/analyze from 4.37.0 to 4.37.1 [`16d8fcd`](https://github.com/acgetchell/CDT-plusplus/commit/16d8fcd2f98b8f139a60d8de0072958b4eaccc10)
+
+- Enforce pkgx-first pinned toolchains [`f01fca6`](https://github.com/acgetchell/CDT-plusplus/commit/f01fca697d36f7c9a49c5665fb4b7adee78e868d)
+
+- Streamline and harden supported build workflows [`e29f69a`](https://github.com/acgetchell/CDT-plusplus/commit/e29f69a676bc7c10c12afbea4791fa70e9298de9)
+
+### Performance
+
+- [**breaking**] Avoid rebuilding caches during move validation [`f574f0f`](https://github.com/acgetchell/CDT-plusplus/commit/f574f0f381d202fcdc3cbaf78a815af983a1815d)
+
 ## [1.0.0-rc2] - 2026-07-22
 
+### Fixed
+
+- Verify Zenodo delivery for the current tag [`05a6e97`](https://github.com/acgetchell/CDT-plusplus/commit/05a6e97dff1243015a8e2237190defb1683b9ef3)
+
+## [1.0.0-rc1] - 2026-07-22
+
 ### Added
 
 - Persist verifiable stochastic run provenance [`ce90551`](https://github.com/acgetchell/CDT-plusplus/commit/ce90551ff28368235844b8fe0b068c050f529ab1)
@@ -37,4 +123,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Update docs/RELEASING.md [`26196da`](https://github.com/acgetchell/CDT-plusplus/commit/26196daa76b1094ea9364a20b3618ef61a5c4185)
 
-[1.0.0-rc2]: https://github.com/acgetchell/CDT-plusplus/compare/0.1.8...v1.0.0-rc2
+[1.0.0-rc3]: https://github.com/acgetchell/CDT-plusplus/compare/v1.0.0-rc2...v1.0.0-rc3
+[1.0.0-rc2]: https://github.com/acgetchell/CDT-plusplus/compare/v1.0.0-rc1...v1.0.0-rc2
+[1.0.0-rc1]: https://github.com/acgetchell/CDT-plusplus/compare/0.1.8...v1.0.0-rc1
diff --git a/CITATION.cff b/CITATION.cff
index f1f75e689..dfa5120bd 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -11,8 +11,8 @@ authors:
     given-names: "Adam"
     email: "adam@adamgetchell.org"
     orcid: "https://orcid.org/0000-0002-0797-0021"
-version: "1.0.0-rc2"
-date-released: "2026-07-22"
+version: "1.0.0-rc3"
+date-released: "2026-07-28"
 repository-code: "https://github.com/acgetchell/CDT-plusplus"
 url: "https://github.com/acgetchell/CDT-plusplus"
 license: BSD-3-Clause
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c35ab2bd2..5be266b0c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,7 +31,7 @@ set(CMAKE_CXX_SCAN_FOR_MODULES OFF)
 
 # CMake project versions are numeric, so keep the release-candidate suffix in
 # the product version used by executables and release metadata.
-set(CDT_VERSION_SUFFIX "-rc2")
+set(CDT_VERSION_SUFFIX "-rc3")
 set(CDT_VERSION "${PROJECT_VERSION}${CDT_VERSION_SUFFIX}")
 set(CDT_SOURCE_REVISION "unknown")
 find_package(Git QUIET)
diff --git a/README.md b/README.md
index 71d8375d1..786adb096 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 
 ## Maintenance status
 
-CDT++ v1.0.0-rc2 is the release candidate for the final C++23 release, v1.0.0, after which this repository will be
+CDT++ v1.0.0-rc3 is the release candidate for the final C++23 release, v1.0.0, after which this repository will be
 archived. It is
 maintained as an independent scientific reference and regression oracle for
 [causal-triangulations](https://github.com/acgetchell/causal-triangulations), the supported Rust successor. New C++
@@ -243,7 +243,7 @@ replayable stress contract.
 ## Setup
 
 This project uses [CMake]+[Ninja] to build C++23 sources and [vcpkg] manifest mode to manage C++ libraries. macOS with
-AppleClang is the primary v1.0.0-rc2 validation target; the remaining compiler and platform matrix will be recorded as
+AppleClang is the primary v1.0.0-rc3 validation target; the remaining compiler and platform matrix will be recorded as
 it is verified.
 
 ### Prerequisites
@@ -503,7 +503,7 @@ branch.
 If CDT++ contributes to published work, cite the software using
 [`CITATION.cff`](CITATION.cff) and cite the scientific methods relevant to the
 work from [`REFERENCES.md`](REFERENCES.md). The software citation records the
-current declared release, `1.0.0-rc2`. Advance its version and release date
+current declared release, `1.0.0-rc3`. Advance its version and release date
 together with the CMake, vcpkg, Python-tooling, Doxygen, and CLI metadata for
 subsequent releases.
 
diff --git a/REFERENCES.md b/REFERENCES.md
index 68aab4fc0..dfe3777c5 100644
--- a/REFERENCES.md
+++ b/REFERENCES.md
@@ -10,7 +10,7 @@ Quick citation for the current declared release:
 
 ```text
 Adam Getchell. 2026. CDT-plusplus: Causal Dynamical Triangulations in C++.
-Version 1.0.0-rc2. GitHub. https://github.com/acgetchell/CDT-plusplus
+Version 1.0.0-rc3. GitHub. https://github.com/acgetchell/CDT-plusplus
 ```
 
 The sections below are grouped by scientific domain. Cite the entries relevant
diff --git a/docs/Doxyfile b/docs/Doxyfile
index dbfc87712..4d3560763 100644
--- a/docs/Doxyfile
+++ b/docs/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = "CDT++"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.0.0-rc2
+PROJECT_NUMBER         = 1.0.0-rc3
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/docs/RELEASING.md b/docs/RELEASING.md
index bbe908eb9..b4ce441dd 100644
--- a/docs/RELEASING.md
+++ b/docs/RELEASING.md
@@ -19,7 +19,7 @@ made; the rest of the workflow is identical:
 ```bash
 # The Git tag has a leading v; metadata versions do not.
 # For the stable release, use TAG=v1.0.0.
-TAG=v1.0.0-rc2
+TAG=v1.0.0-rc3
 VERSION="${TAG#v}"
 
 RELEASE_FLAGS=()
@@ -28,8 +28,8 @@ if [[ "$VERSION" == *-rc* ]]; then
 fi
 ```
 
-A release-candidate tag such as `v1.0.0-rc2` uses `1.0.0-rc2` for product,
-vcpkg, Doxygen, and citation metadata, and the PEP 440 spelling `1.0.0rc2` for
+A release-candidate tag such as `v1.0.0-rc3` uses `1.0.0-rc3` for product,
+vcpkg, Doxygen, and citation metadata, and the PEP 440 spelling `1.0.0rc3` for
 Python metadata. A stable tag such as `v1.0.0` uses `1.0.0` everywhere else.
 
 The changelog workflow requires the pinned `git-cliff` version declared by the
@@ -70,8 +70,9 @@ Edit the following synchronized metadata:
 - `CITATION.cff`: `version` and `date-released`.
 - `README.md`, `REFERENCES.md`, and `.github/CONTRIBUTING.md`: active release
   references and release-facing prose.
+- `docs/RELEASING.md`: current release command examples.
 
-For `v1.0.0-rc2`, synchronize the versions in the repository before generating
+For `v1.0.0-rc3`, synchronize the versions in the repository before generating
 the changelog.
 Set `CITATION.cff`'s `date-released` to the actual release date and review the
 other fields rather than rewriting unchanged metadata:
@@ -85,7 +86,8 @@ ${EDITOR:-vi} \
   CITATION.cff \
   README.md \
   REFERENCES.md \
-  .github/CONTRIBUTING.md
+  .github/CONTRIBUTING.md \
+  docs/RELEASING.md
 
 uv lock
 just changelog-unreleased "$TAG"
@@ -130,7 +132,8 @@ git add \
   CHANGELOG.md \
   README.md \
   REFERENCES.md \
-  .github/CONTRIBUTING.md
+  .github/CONTRIBUTING.md \
+  docs/RELEASING.md
 
 git diff --cached --check
 git diff --cached --stat
@@ -164,7 +167,7 @@ Return to `main`, update it to the merge commit, and repeat the release gates
 against the exact commit that will be tagged:
 
 ```bash
-TAG=v1.0.0-rc2
+TAG=v1.0.0-rc3
 
 git switch main
 git pull --ff-only
@@ -222,7 +225,7 @@ Stop if this preflight fails. Enabling Zenodo after publication does not
 reliably import an earlier GitHub release.
 
 ```bash
-TAG=v1.0.0-rc2
+TAG=v1.0.0-rc3
 RELEASE_FLAGS=(--prerelease)
 
 gh release create "$TAG" \
diff --git a/pyproject.toml b/pyproject.toml
index ac27ef572..cb9fb12f6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "cdt-plusplus-scripts"
-# PEP 440 spelling of the CDT++ v1.0.0-rc2 release.
-version = "1.0.0rc2"
+# PEP 440 spelling of the CDT++ v1.0.0-rc3 release.
+version = "1.0.0rc3"
 description = "Python support and experiment scripts for CDT++"
 requires-python = ">=3.12,<3.13"
 dependencies = []
diff --git a/uv.lock b/uv.lock
index e431efb34..28158dd51 100644
--- a/uv.lock
+++ b/uv.lock
@@ -75,7 +75,7 @@ wheels = [
 
 [[package]]
 name = "cdt-plusplus-scripts"
-version = "1.0.0rc2"
+version = "1.0.0rc3"
 source = { editable = "." }
 
 [package.dev-dependencies]
diff --git a/vcpkg.json b/vcpkg.json
index 19315a2e8..062679daa 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "cdt-plusplus",
-  "version": "1.0.0-rc2",
+  "version": "1.0.0-rc3",
   "builtin-baseline": "4e82e29f14eac2b3422f18f72c7524d04f19924e",
   "dependencies": [
     "boost-compat",