With the latest optimizations of the `FinalityNotification` generation, the aux data pruning started to print a warning. The problem here was that we printed a warning and stopped the adding of blocks to prune when we hit the `heigh_limit`. This is now wrong, as we could for example have two 512 long forks and then we start finalizing one of them. The second fork head would be part of the stale heads at some point (in the current implementation when we finalize second fork head number + 1), but then we would actually need to go back into the past than `heigh_limit` (which was actually last_finalized - 1). We now go back until we reach the canonical chain. Also fixed some wrong comment that was added by be about the content of the `finalized` blocks in the `FinalityNotification`.
Substrate ·

Substrate is a next-generation framework for blockchain innovation 🚀.
Trying it out
Simply go to docs.substrate.io and follow the installation instructions. You can also try out one of the tutorials.
Contributions & Code of Conduct
Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc. In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
Security
The security policy and procedures can be found in docs/SECURITY.md.
License
- Substrate Primitives (
sp-*), Frame (frame-*) and the pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0. - Substrate Client (
/client/*/sc-*) is licensed under GPL v3.0 with a classpath linking exception.
The reason for the split-licensing is to ensure that for the vast majority of teams using Substrate to create feature-chains, then all changes can be made entirely in Apache2-licensed code, allowing teams full freedom over what and how they release and giving licensing clarity to commercial teams.
In the interests of the community, we require any deeper improvements made to Substrate's core logic (e.g. Substrate's internal consensus, crypto or database code) to be contributed back so everyone can benefit.
