Make ACA-Py 1.6 an LTS release

Signed-off-by: Stephen Curran <swcurran@gmail.com>

Author: swcurran

.github/lts-versions.txt

@@ -5,8 +5,6 @@
 # Empty lines are ignored
 
 # Example: Uncomment the lines below to enable LTS for specific versions
-0.12
-1.2
 1.3
 
 # For testing purposes (remove in production):

PUBLISHING.md

@@ -129,14 +129,20 @@ For the build test, the RTD Sphinx theme needs to be added to the docker image,
    wait until it is merged. It's embarrassing when you have to do a whole new
    release just because you missed something silly...I know!
 
-10. Immediately after it is merged, create a new GitHub tag representing the
-   version. The tag name and title of the release should be the same as the
-   version in [pyproject.toml](https://github.com/openwallet-foundation/acapy/tree/main/pyproject.toml). Use
-   the "Generate Release Notes" capability to get a sequential listing of the
-   PRs in the release, to complement the manually curated Changelog. Verify on
-   PyPi that the version is published.
-
-11. New images for the release are automatically published by the GitHubAction
+10. If the release is a final release AND the latest release AND an LTS release,
+    update the LTS branch to point to `main`. Do this ONLY when the current
+    release version is both the latest release AND its version has been declared
+    an LTS release. Once a new version has been created that has NOT been
+    declared an LTS, the LTS branch will extend independent of main.
+
+11. Immediately after it is merged, create a new GitHub tag representing the
+   version. The tag name and title of the release should be the
+   same as the version in
+   [pyproject.toml](https://github.com/openwallet-foundation/acapy/tree/main/pyproject.toml). Use the "Generate Release Notes" capability to get a sequential listing of
+   the PRs in the release, to complement the manually curated Changelog. Verify
+   on PyPi that the version is published.
+
+12. New images for the release are automatically published by the GitHubAction
    Workflow: [publish.yml]. The action is triggered when a release is tagged, so
    no manual action is needed. Images are published in the [OpenWallet
    Foundation Package Repository under
@@ -178,7 +184,7 @@ For the build test, the RTD Sphinx theme needs to be added to the docker image,
 
 [publish.yml]: https://github.com/openwallet-foundation/acapy/blob/main/.github/workflows/publish.yml
 
-12. When a new release is tagged, create a new branch at the same commit with
+13. When a new release is tagged, create a new branch at the same commit with
     the branch name in the format `docs-v<version>`, for example, `docs-v1.6.0rc0`.
     The creation of the branch triggers the execution of the [publish-docs]
     GitHub Action which generates the documentation for the new release,
@@ -192,7 +198,7 @@ For the build test, the RTD Sphinx theme needs to be added to the docker image,
 [Managing the ACA-Py Documentation Site]: Managing-ACA-Py-Doc-Site.md
 [https://aca-py.org]: https://aca-py.org
 
-13. Update the [ACA-Py Read The Docs site] by logging into Read The Docs
+14. Update the [ACA-Py Read The Docs site] by logging into Read The Docs
     administration site, building a new "latest" (main branch) and activating
     and building the new release by version ID. Appropriate permissions are
     required to publish the new documentation version.

README.md

@@ -45,15 +45,15 @@ the [LTS strategy](./LTS-Strategy.md).
 
 ### LTS Docker Images
 
-ACA-Py publishes Git tags in the format `x.y-lts` (e.g., `1.3-lts`) along with 
+ACA-Py publishes Git tags in the format `x.y-lts` (e.g., `1.6-lts`) along with 
 corresponding Docker images to the GitHub Container Registry (GHCR) for each LTS release. These 
 Docker images are tagged with a stable `-lts` suffix, making it easier for developers to rely on 
 a consistent and maintained version line.
 
-You can pull the latest LTS image for version `1.3` using the following image tag:
+You can pull the latest LTS image for version `1.6` using the following image tag:
 
 ```bash
-ghcr.io/openwallet-foundation/acapy-agent:py3.12-1.3-lts
+ghcr.io/openwallet-foundation/acapy-agent:py3.12-1.6-lts
 ```
 
 The `-lts` tags are kept up to date with the latest patch releases from the corresponding 
@@ -62,7 +62,8 @@ supported version within that release series.
 
 **Active LTS releases:**
 
-- Release [1.3](https://github.com/openwallet-foundation/acapy/releases/tag/1.3.1) **Current LTS Release**
+- Release [1.6](https://github.com/openwallet-foundation/acapy/blob/1.6.lts/CHANGELOG.md) **Current LTS Release**
+- Release [1.3](https://github.com/openwallet-foundation/acapy/blob/1.3.lts/CHANGELOG.md) **End of Life: January 2027**
 
 **Past LTS releases:**