Add March 2024 newsletter (#275)

* Add March 2024 newsletter

* Update content/posts/newsletter-march-2024.md

Co-authored-by: Manuel Kaufmann <humitos@gmail.com>

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Co-authored-by: Manuel Kaufmann <humitos@gmail.com>

content/posts/newsletter-march-2024.md

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+title: Read the Docs Newsletter - March 2024
+date: March 13, 2024
+description: Company updates and new features from the last month, current focus, and upcoming features.
+category: Newsletter
+tags: newsletter, community
+authors: Eric Holscher
+status: published
+image: /images/mar-2024.jpg
+image_credit: Photo by <a href="https://unsplash.com/@catrionaobrian?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Ekaterina Novitskaya</a> on <a href="https://unsplash.com/photos/white-cherry-blossom-in-bloom-during-daytime-kcwb2wDxQFM?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Unsplash</a>
+
+## News and updates
+
+- We added [support for "latest"](https://about.readthedocs.com/blog/2024/02/introducing-latest-aliases/) in all of the build tools, allowing you to always be up to date.
+- We added [support for Ruby as a build tool](https://about.readthedocs.com/blog/2024/03/read-the-docs-loves-ruby/), based on feedback from our community.
+- We shipped our first official links to our new beta dashboards in our application, linking users to our [much improved build detail page](https://beta.readthedocs.org/projects/test-builds/builds/23655124/). This means both of our beta dashboards are officially in public beta!
+- We made [Sphinx builds share their environment between builds](https://github.com/readthedocs/readthedocs.org/pull/11073), which should make builds of multiple formats faster.
+- We made some initial structure changes in [our user documentation](https://docs.readthedocs.io/en/stable/), to make it easier to navigate and find the information you need. More changes will be coming here as we onboard a contractor to help with this work.
+- Our new Addons flyout was updated to [keep the page when changing versions or languages](https://github.com/readthedocs/addons/pull/242).
+- We continue to simplify our settings pages. This month we [combined our Advanced Settings and Settings pages](https://github.com/readthedocs/readthedocs.org/pull/11169).
+
+You can always see the latest changes to our platforms in our [changelog 📃](https://docs.readthedocs.io/page/changelog.html).
+
+## Upcoming changes
+
+- We continue to work on improving Addons. The next step here is to [ship Addons on Mkdocs projects](https://github.com/readthedocs/readthedocs.org/pull/11206) by default, removing our build process overrides.
+- Our marketing website continues to get some updates. We are working on improving the user experience and making it easier to find the information you need.
+- With the public beta of our new dashboard, we are working on the final touches and hope to have it available for all users soon.
+- We continue to investigate Okta SSO and improve our support for Google SSO.
+
+Want to follow along with our development progress? View our [development roadmap 📍️](https://github.com/orgs/readthedocs/projects/156/views/1)
+
+## Possible issues
+
+- We have officially announced removal of support for VCS systems other than Git. [Read our blog post](https://about.readthedocs.com/blog/2024/02/drop-support-for-subversion-mercurial-bazaar/) for more information.
+- We have [defaulted traffic analytics off](https://github.com/readthedocs/readthedocs.org/pull/11056) for users of our new Addons. This default is to save on resources for projects that aren't looking at our analytics data.
+- Our [beta dashboard](https://beta.readthedocs.org/) continues to be tested in public beta, and new functionality for Addons configuration is only be available in that new interface.
+
+-----
+
+Questions? Comments? Ideas for the next newsletter? [Contact us](mailto:hello@readthedocs.org)!