Conan Center will stop receiving updates for Conan 1.x (#273)

* Conan-Center-will-stop-receiving-updates-for-Conan

* add GH link

Author: ErniGH

_posts/2024-09-30-Conan-Center-will-stop-receiving-updates-for-Conan-1.markdown

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+---
+layout: post
+comments: false
+title: "Conan Center will stop receiving updates for Conan 1.x packages soon"
+meta_title: "Conan Center will stop receiving updates for Conan 1.x packages soon"
+description: "Conan Center will soon stop providing updates for Conan 1.x packages as the platform shifts focus to supporting Conan 2.x."
+keywords: "conan, conan2, conan center"
+---
+
+
+Conan 2.0 was released in February 2022 after years in development. Since then, thousands of users and teams have 
+adopted Conan 2.0, and the Conan Center Index repository has continued to see significant growth. In 2023, we received 
+close to 6000 Pull Requests for recipes. 
+
+Since the Conan 2.0 release, and to facilitate the upgrade path for our users, we adopted the decision to make recipes 
+in Conan Center compatible with both Conan 1.x and Conan 2.0.
+
+Porting all recipes to be Conan 2.0 compatible has been a significant effort - aided by community contributors to which 
+we are very grateful. This has placed additional pressure on all resources, including our CI compute capabilities. This 
+has also given the team valuable insights into how to improve and streamline the CI and review processes.
+
+On Conan 2 release day - we had published binaries for the top 120 most used recipes. Today, nearly 97% of all recipes 
+in Conan Center are compatible with Conan 2.
+
+As time has progressed, today the majority of requests to the Conan Center remote originate from Conan 2 users.
+
+**Today we are announcing that before the end of the year, new recipe updates in Conan Center will only be compatible 
+with Conan 2. Please read below to see how this might affect you.**
+
+## For Conan 1.x users
+
+### Users accessing the ``https://center.conan.io`` remote via the Conan client
+
+The Conan Center remote will stop being updated for Conan 1.x users. This means that from this date:
+- **No new recipe revisions** will be published or visible to the Conan 1.x client.
+- **No new versions of libraries** will be published or made available for Conan 1.x.
+- **No new recipes** will be published or visible for Conan 1.x.
+- All **previously available and published recipes** and binaries will continue to be accessible.
+- **No configuration changes** are required. After the stated deadline, the Conan Center remote for Conan 1.x users 
+will be frozen at its current state and will not receive any further updates, as detailed above.
+- Under **exceptional circumstances**, updates may be published for security reasons.
+
+### Users maintaining their own fork of the conan-center-index git repository
+
+- There will be a branch that contains the **frozen versions/revisions** on the aforementioned date - details will follow shortly
+- From then on, we will **no longer guarantee that recipes remain compatible with Conan 1.x** in the main (master) branch.
+
+## For Conan 2.x users
+
+From the date of the switch, new recipe updates will be uploaded internally to a new repository. New details will be 
+announced soon, the team is working in two possible solutions to facilitate this transition:
+- Requests coming from Conan 2 clients will be able to see the up-to-date revisions, without impacting legacy Conan 1, 
+and without requiring any configuration changes for Conan 1 users.
+- A new remote endpoint will be made public
+
+## Contributions in the conan-center-index repository
+
+- Coinciding with the switch, the Conan Center CI service will only validate recipes and publish packages only for Conan 2
+- It will no longer be a requirement to retain Conan 1.x compatibility - contributors are free to use Conan 2-only 
+features where it aligns with the PR goal
+- **We emphatically ask community contributors to not submit pull requests to perform refactorings to remove old logic or 
+mass recipe modernizations**. We want to avoid overwhelming our CI resources and the review team - and continue 
+prioritizing new features, bug fixes, new versions, new platforms and new recipes.
+  - Pull requests with recipe modernizations only and no functional changes or bug fixes will not be prioritized, and 
+we may ask the contributor to reopen the PR at a later date.
+  - Pull requests that perform recipe modernizations alongside other valid changes (functional or bug fixes) may 
+experience delays in reviews if the changesets/diffs make it less obvious what is being changed.
+  - As usual, opening a large number of PRs in a short time is hugely discouraged and against our guidelines.
+- The Conan Center CI service will undergo upgrades to rely on Conan 2 features - further changes will be announced in the near future
+
+For questions or feedback, please follow the discussion in [Github](https://github.com/conan-io/conan-center-index/discussions/25461).
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