Our licensing principle remains to charge companies while making tools for individual devs open source. Very few individual devs (or companies) used the limited-feature open-source variant of code search, so we decided to remove it. Usage of Sourcegraph code search was even more skewed toward our official non-OSS build than in other similar situations like Google Chrome vs. Chromium or VS Code vs. VSCodium. Maintaining 2 variants was a burden on our engineering team that had very little benefit for anyone.
You can see more explanation at https://github.com/sourcegraph/sourcegraph/issues/53528#issu.... The change was announced in the changelog and in a PR (all of our development occurs in public), and we will have a blog post this week after we separate our big monorepo into 2 repos as planned: the 100% OSS repo for Cody and the non-OSS repo for code search.
You can still use Sourcegraph code search for free on public code at https://sourcegraph.com and on our self-hosted free tier on private code (which means individual devs can still run Sourcegraph code search 100% for free). Customers are not affected at all.