uniblab · uniblab · Sep 8, 2026 · Sep 8, 2026 · Sep 8, 2026 · Sep 8, 2026
diff --git a/.github/workflows/distribution-validation.yaml b/.github/workflows/distribution-validation.yaml
@@ -91,8 +91,8 @@ jobs:
             name: Presentation
           - shard: semantic
             name: Semantic and hardening
-          - shard: rc
-            name: 1.0 RC
+          - shard: release
+            name: 1.0 release line
     name: Package ${{ matrix.name }}
     runs-on: ubuntu-24.04
     steps:

diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
@@ -83,8 +83,8 @@ jobs:
             name: Presentation
           - shard: semantic
             name: Semantic and hardening
-          - shard: rc
-            name: 1.0 RC
+          - shard: release
+            name: 1.0 release line
     name: Package ${{ matrix.name }}
     runs-on: ubuntu-24.04
     steps:

diff --git a/.github/workflows/pull-request.yaml b/.github/workflows/pull-request.yaml
@@ -77,8 +77,8 @@ jobs:
             name: Presentation
           - shard: semantic
             name: Semantic and hardening
-          - shard: rc
-            name: 1.0 RC
+          - shard: release
+            name: 1.0 release line
     name: Package ${{ matrix.name }}
     runs-on: ubuntu-latest
     steps:

diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
@@ -129,8 +129,8 @@ jobs:
             name: Presentation
           - shard: semantic
             name: Semantic and hardening
-          - shard: rc
-            name: 1.0 RC
+          - shard: release
+            name: 1.0 release line
     name: Package ${{ matrix.name }}
     runs-on: ubuntu-latest
     steps:

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,6 +6,40 @@ Notable changes to `Icod.Terminal` are recorded here for consumers who need a co
 
 No unreleased 1.x changes are currently recorded.
 
+## 1.0.0
+
+### Stable contract
+
+- Promotes the `1.0.0-rc1` contract to stable `1.0.0` without changing the frozen public API or adding a new terminal-protocol family.
+- Establishes the permanent 1.x architecture, ownership, lifecycle, input/query, presentation/output, security, compatibility, licensing, migration, and public-API documents as the stable support authorities.
+- Retains `net8.0`, `net9.0`, and `net10.0` as first-class package targets.
+- Retains Windows, Linux, and macOS support in the built-in system terminal-control provider.
+
+### Compatibility
+
+- Keeps the rc1 public API fingerprint unchanged: `8b213bb287e14729b07f0e640c8c1b1a5aa36b26f867f1e97604fb86fded36e5`.
+- Carries the one pre-1.0 breaking correction forward: public `TerminalSession.Input` remains removed so a live session has one authoritative input/query-routing path.
+- Retains public `ITerminalInput`, `ITerminalOutput`, and `ITerminalControlProvider` injection seams.
+- Retains `TerminalSession.Output` as the documented advanced borrowed output transport outside session serialization.
+
+### Licensing
+
+- Makes the reusable `Icod.Terminal` library, root project, and library C# sources explicitly `LGPL-3.0-or-later`; the published NuGet package remains LGPL.
+- Makes repository test, sample, package-smoke, verification, and downstream acceptance/soak executable programs explicitly `GPL-3.0-or-later`.
+- Adds project-appropriate license headers to every tracked `.cs` and `.csproj` file, including owning assembly name, one-line description, and the 2026 Timothy J. Bruce copyright notice.
+- Requires every project file to place its license header immediately after `<?xml version="1.0" encoding="utf-8"?>` and before `<Project ...>`.
+- Adds an exact license-header verification gate to package-candidate CI and local `all` / `validate` builds.
+- Adds `docs/Licensing.md` as the permanent explanation of the library/executable license boundary; the root `LICENSE` contains the LGPLv3 terms and incorporated GPLv3 terms.
+
+### Validation and release engineering
+
+- Uses the optimized runtime/package validation graph proven after rc1: six OS/architecture runtime jobs, one portable package candidate, and four parallel package-contract shards.
+- Retains exact package/XML/symbol/Source Link verification and package-only contracts from 0.8 through 0.18.
+- Retains the fresh 1.0 release-line package contract and current packaged `Icod.DCurses 0.1.0` compatibility witness.
+- Requires curated release notes for tag publication.
+
+See `docs/releases/1.0.0.md` for the full stable release notes.
+
 ## 1.0.0-rc1
 
 ### Contract freeze

diff --git a/Directory.Build.props b/Directory.Build.props
@@ -2,7 +2,7 @@
 	<PropertyGroup>
 		<!-- Repository-wide release version authority. -->
 		<VersionPrefix>1.0.0</VersionPrefix>
-		<VersionSuffix>rc1</VersionSuffix>
+		<VersionSuffix></VersionSuffix>
 		<Version Condition="'$(VersionSuffix)' == ''">$(VersionPrefix)</Version>
 		<Version Condition="'$(VersionSuffix)' != ''">$(VersionPrefix)-$(VersionSuffix)</Version>
 		<PackageVersion>$(Version)</PackageVersion>

diff --git a/Icod.Terminal-Development-Roadmap.md b/Icod.Terminal-Development-Roadmap.md
@@ -4,19 +4,22 @@
 **Package:** `Icod.Terminal`  
 **Language:** C# 13  
 **Target frameworks:** `net8.0`; `net9.0`; `net10.0`  
-**Current release line:** `1.0.0-rc1`  
-**Current roadmap:** [`Icod.Terminal-1.0.0-rc1-Development-Roadmap.md`](Icod.Terminal-1.0.0-rc1-Development-Roadmap.md)  
-**Stable contract target:** `1.0.0`
+**Current release line:** `1.0.0`  
+**Stable contract:** `1.0.0`
 
 ## Purpose
 
-This file is the permanent entry point for current `Icod.Terminal` development planning.
+This file is the permanent entry point for current `Icod.Terminal` development and release planning.
 
 The repository began with a detailed pre-1.0 architecture and milestone plan. That original document remains valuable historical design evidence and is preserved verbatim at:
 
 [`docs/history/Icod.Terminal-Initial-Development-Roadmap.md`](docs/history/Icod.Terminal-Initial-Development-Roadmap.md)
 
-The current release-specific roadmap, rather than the historical initial plan, is authoritative for active development state.
+The completed rc1 development program remains preserved at:
+
+[`Icod.Terminal-1.0.0-rc1-Development-Roadmap.md`](Icod.Terminal-1.0.0-rc1-Development-Roadmap.md)
+
+Stable `1.0.0` promotes that qualified contract without adding a new feature or public-API delta.
 
 ## Current architecture
 
@@ -38,11 +41,9 @@ terminal applications
 - `Icod.DCurses` owns cells, windows, virtual-screen state, refresh/diff policy, and curses presentation abstractions.
 - PTY/process hosting remains orthogonal to the `Icod.Terminal` runtime contract.
 
-## Current 1.0 release-candidate program
+## Stable 1.0 program
 
-`1.0.0-rc1` is a contract-freeze release rather than a protocol-expansion release.
-
-Its tranches are:
+The pre-1.0 contract-freeze program completed T190–T197 covering:
 
 ```text
 T190  contract and public-API regret audit
@@ -55,7 +56,9 @@ T196  package metadata / documentation artifact closure
 T197  downstream RC acceptance / release-candidate closure
 ```
 
-See the current rc1 roadmap for exact tranche status and validation workflow numbers.
+`1.0.0-rc1` was published and qualified. Publication/CI hardening then merged to `main` at `dfa149c604aaf860a18923d23999b045ab98532d`; workflow run `34191123678` passed the redesigned six-runtime/single-package/four-shard Release validation graph.
+
+Stable `1.0.0` is a release promotion only. No new terminal protocol, production feature, or public API change is permitted in the stable-promotion branch unless a release-blocking defect is discovered and explicitly re-audited.
 
 ## Permanent 1.x authorities
 
@@ -70,25 +73,54 @@ Consumers and maintainers should treat these documents as the current contract a
 - `docs/Presentation-and-Reversible-State.md`
 - `docs/Semantic-Output-Protocols.md`
 - `docs/Security-and-Privacy.md`
-- `docs/Public-API-Baseline-1.0-rc1.md`
+- `docs/Public-API-Baseline-1.0.md`
 - `docs/Compatibility-and-Versioning.md`
 - `docs/Migration-to-1.0.md`
+- `docs/releases/1.0.0.md`
+- `CHANGELOG.md`
 
-Historical `Txxx`, `Public-API-Baseline-0.x`, and version-specific roadmap files remain design/release evidence.
+Historical T-series, 0.x public API baselines, and `Public-API-Baseline-1.0-rc1.*` remain design/release evidence.
+
+## Stable API baseline
+
+Stable 1.0 must reproduce the rc1 public API fingerprint exactly:
+
+```text
+633 lines
+77 exported public types
+32 public enums / 242 enum values
+124 public methods
+144 public properties
+13 public constructors
+SHA-256 8b213bb287e14729b07f0e640c8c1b1a5aa36b26f867f1e97604fb86fded36e5
+```
+
+Any deviation during stable promotion is a release blocker requiring explicit compatibility review rather than a baseline update by default.
 
 ## Release discipline
 
-Pull requests validate the Staging configuration on Windows, Linux, and macOS. Distribution validation on `main` uses Release across the configured Windows/Linux/macOS x64/ARM64 matrix.
+Pull requests validate Staging on Windows, Linux, and macOS runtime/source paths while one portable package candidate feeds four parallel package-contract shards.
+
+`main` Release validation runs runtime/source checks on:
+
+- Windows x64;
+- Windows ARM64;
+- Linux x64;
+- Linux ARM64;
+- macOS x64;
+- macOS ARM64;
+
+and separately validates one RID-independent package candidate through the four package shards.
 
-The release candidate retains:
+The release line retains:
 
 - full build/test coverage on `net8.0`, `net9.0`, and `net10.0`;
-- the frozen 1.0 public-API fingerprint;
-- exact NuGet artifact/XML verification;
+- the frozen stable 1.0 public-API fingerprint;
+- exact NuGet artifact/XML/symbol/Source Link verification;
 - historical package-only contracts from 0.8 through 0.18;
-- a fresh 1.0 release-candidate package-only contract;
-- current `Icod.DCurses 0.1.0` project-reference and package-boundary integration/ownership acceptance.
+- the stable 1.0 release-line package contract;
+- current `Icod.DCurses 0.1.0` project-reference and package-boundary compatibility/ownership acceptance.
 
 The DCurses checks are compatibility witnesses for the integration surface its current early release exercises. They are not treated as exhaustive proof of every `Icod.Terminal` contract; Terminal's own API, invariant, unit/hardening, and package gates remain the primary release evidence for the full 1.x surface.
 
-Tags trigger publication. A tag is created only after the exact release candidate has passed the required PR and post-merge Release gates and publication is explicitly authorized.
+Tags trigger publication. Tag `v1.0.0` is created only after the exact stable-promotion PR head and resulting exact `main` commit pass their required gates and publication is explicitly authorized.
diff --git a/Icod.Terminal.csproj b/Icod.Terminal.csproj
@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+	Icod.Terminal
+	Managed, cross-platform live-terminal session and terminal-control library for .NET.
+	Copyright (C) 2026  Timothy J. Bruce <uniblab@hotmail.com>
+-->
+
+<!--
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Lesser General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
 <Project Sdk="Microsoft.NET.Sdk">
 	<PropertyGroup>
 		<Copyright>Copyright (c) 2026 Timothy J. Bruce</Copyright>
@@ -19,7 +39,7 @@
 		<Title>Icod.Terminal</Title>
 		<Authors>Timothy J. Bruce</Authors>
 		<Description>Managed, cross-platform live-terminal session, endpoint, mode, input, lifecycle, and terminal-control foundation for .NET.</Description>
-		<PackageReleaseNotes>Icod.Terminal 1.0.0-rc1 freezes the intended 1.x contract across net8.0/net9.0/net10.0. Breaking change: public TerminalSession.Input is removed so a live session retains one authoritative input/query-routing path; ITerminalInput remains public for custom transport injection. The release candidate adds permanent 1.x documentation, a machine-frozen public API/enum baseline, compatibility/migration policy, and strengthened package/release validation without adding a new terminal protocol family. Full notes: https://github.com/uniblab/Icod.Terminal/blob/v1.0.0-rc1/docs/releases/1.0.0-rc1.md ; migration: https://github.com/uniblab/Icod.Terminal/blob/v1.0.0-rc1/docs/Migration-to-1.0.md</PackageReleaseNotes>
+		<PackageReleaseNotes>Icod.Terminal 1.0.0 establishes the stable 1.x contract across net8.0/net9.0/net10.0 with the same frozen public API and enum layout qualified by 1.0.0-rc1. Breaking change from the final 0.x line: public TerminalSession.Input is removed so a live session retains one authoritative input/query-routing path; ITerminalInput remains public for custom transport injection. Stable 1.0 adds no new terminal protocol family beyond rc1; it promotes the documented architecture, ownership, lifecycle, query, restoration, security, compatibility, and package contracts to stable support. Full notes: https://github.com/uniblab/Icod.Terminal/blob/v1.0.0/docs/releases/1.0.0.md ; migration: https://github.com/uniblab/Icod.Terminal/blob/v1.0.0/docs/Migration-to-1.0.md</PackageReleaseNotes>
 		<PackageReadmeFile>README.md</PackageReadmeFile>
 		<PackageIcon>icon.png</PackageIcon>
 		<PackageProjectUrl>https://github.com/uniblab/Icod.Terminal</PackageProjectUrl>