diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index f054fb5fb..76e8fa4ee 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,8 +19,7 @@ on:
       - '.github/workflows/installer.yml'
 
 env:
-  # FIXME: substrate preview
-  FRONTEND_BRANCH: feat/substrate
+  FRONTEND_BRANCH: ${{ github.ref == 'refs/heads/docs-next' && 'dev' || 'master' }}
   GITHUB_TOKEN: ${{ secrets.DOCS_GITHUB_TOKEN }}
 
 jobs:
@@ -66,8 +65,7 @@ jobs:
 
       # NOTE: Installer is tested in `installer` workflow
       - name: Commit and push frontend
-        # FIXME: substrate preview
-        # if: github.ref_type == 'tag'
+        if: github.ref_type == 'tag'
         run: |
           cp src/dipdup/install.py ../interface/public/install.py
           cd ../interface
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9eb4c70aa..2df8f0076 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog], and this project adheres to [Semantic
 
 Releases prior to 7.0 has been removed from this file to declutter search results; see the [archived copy](https://github.com/dipdup-io/dipdup/blob/8.0.0b5/CHANGELOG.md) for the full list.
 
-## [8.1.3] - 2024-12-20
+## [Unreleased]
 
 ### Added
 
@@ -15,7 +15,7 @@ Releases prior to 7.0 has been removed from this file to declutter search result
 - substrate.subscan: Added `substrate.subscan` datasource to fetch ABIs from Subscan.
 - substrate.subsquid: Added `substrate.subsquid` datasource to fetch historical data from Squid Network.
 
-## [Unreleased]
+## [8.1.3] - 2024-12-20
 
 ### Fixed
 
diff --git a/docs/9.release-notes/_8.0_changelog.md b/docs/9.release-notes/_8.0_changelog.md
index ded634f66..2d3c20412 100644
--- a/docs/9.release-notes/_8.0_changelog.md
+++ b/docs/9.release-notes/_8.0_changelog.md
@@ -18,15 +18,17 @@
 - starknet.events: Added `starknet.events` index kind to process Starknet events.
 - starknet.node: Added Starknet node datasource for last mile indexing.
 - starknet.subsquid: Added `starknet.subsquid` datasource to fetch historical data from Subsquid Archives.
+- substrate.events: Added `subtrate.events` index kind to process Substrate events.
+- substrate.node: Added `subtrate.node` datasource to receive data from Substrate node.
+- substrate.subscan: Added `substrate.subscan` datasource to fetch ABIs from Subscan.
+- substrate.subsquid: Added `substrate.subsquid` datasource to fetch historical data from Squid Network.
 - tezos.operations: Added `sr_cement` operation type to process Smart Rollup Cemented Commitments.
 
 ### Fixed
 
 - cli: Don't save reports for successful test runs.
 - cli: Don't update existing installation in `self install` command unless asked to.
-- cli: Don't wrap exceptions with `CallbackError` to avoid shadowing the original exception.
 - cli: Fixed `--pre` installer flag.
-- cli: Fixed `--template` option being ignored when `--quiet` flag is set.
 - cli: Fixed env files not being loaded in some commands.
 - cli: Fixed errors raised when the project package is invalid.
 - cli: Fixed progress estimation when there are indexes with `last_level` option set.
@@ -34,26 +36,19 @@
 - cli: Improved logging of indexer status.
 - config: Allow `sentry.dsn` to be empty string.
 - config: Fixed (de)serialization of hex strings in config.
-- config: Fixed parsing config files after updating to pydantic 2.10.3.
-- config: Fixed setting default loglevels when `logging` is a dict.
 - config: Fixed setting logging levels according to the config.
-- config: Fixed starknet index validation error.
 - database: Fixed concurrency issue when using `get_or_create` method.
 - evm.events: Fixed matching logs when filtering by topic0.
 - evm.events: Improve fetching event batches from node.
 - evm.subsquid: Fixed typo in `iter_events` method name.
 - evm: Fixed crash when contract ABI contains overloaded methods.
 - install: Fixed reinstalling package when `--force` flag is used.
-- metrics: Fixed indexed objects counter.
 - models: Fixed `CachedModel` preloading.
 - models: Fixed setting default value for `Meta.maxsize`.
 - package: Create package in-place if cwd equals package name.
 - performance: Add index name to fetcher and realtime queues.
 - performance: Fixed estimation indexing speed in levels per second.
 - starknet.events: Fixed filtering events by key.
-- starknet: Added support for struct and array types, as well as u256 and ByteArray handlers.
-- starknet: Fixed event payload parsing (account for keys field).
-- starknet: Fixed missing class property in node datasource.
 - subsquid: Fixed missing entry in `dipdup_head` internal table.
 - tezos.big_maps: Fixed logging status message in `skip_history` mode.
 - tezos.big_maps: Respect order of handlers in `skip_history` mode.
diff --git a/docs/9.release-notes/_8.1_changelog.md b/docs/9.release-notes/_8.1_changelog.md
index cad455a94..93c1d4431 100644
--- a/docs/9.release-notes/_8.1_changelog.md
+++ b/docs/9.release-notes/_8.1_changelog.md
@@ -8,15 +8,20 @@
 - cli: Added interactive mode for `new` command.
 - database: Support database migrations using [`aerich`](https://github.com/tortoise/aerich).
 - hasura: Added `hide` and `hide_internal` config options to make specified tables/views private.
-- substrate.events: Added `subtrate.events` index kind to process Substrate events.
-- substrate.node: Added `subtrate.node` datasource to receive data from Substrate node.
-- substrate.subscan: Added `substrate.subscan` datasource to fetch ABIs from Subscan.
-- substrate.subsquid: Added `substrate.subsquid` datasource to fetch historical data from Squid Network.
 
 ### Fixed
 
+- cli: Don't wrap exceptions with `CallbackError` to avoid shadowing the original exception.
+- cli: Fixed `--template` option being ignored when `--quiet` flag is set.
 - cli: Fixed progress estimation logging.
 - cli: Reload constants in `dipdup.env` after applying env-files.
+- config: Fixed parsing config files after updating to pydantic 2.10.3.
+- config: Fixed setting default loglevels when `logging` is a dict.
+- config: Fixed starknet index validation error.
 - context: Allow to add Starknet contracts in runtime.
 - database: Ignore non-existent immutable table on schema wipe.
+- metrics: Fixed indexed objects counter.
 - starknet.events: Fixed event ID calculation.
+- starknet: Added support for struct and array types, as well as u256 and ByteArray handlers.
+- starknet: Fixed event payload parsing (account for keys field).
+- starknet: Fixed missing class property in node datasource.
diff --git a/src/dipdup/project.py b/src/dipdup/project.py
index 6fcb686b1..61ee0a12c 100644
--- a/src/dipdup/project.py
+++ b/src/dipdup/project.py
@@ -374,10 +374,6 @@ def _render_templates(
         ).with_suffix(path.suffix[:-3])
         output_path = Path(Template(str(output_path)).render(project=answers))
 
-        # FIXME: A very dirty hack for demo_substrate_events project
-        if output_path.name == 'Dockerfile':
-            force = True
-
         _render(answers, template_path, output_path, force)
 
     # NOTE: If there are files without .j2 extension, just copy them
diff --git a/src/dipdup/runtimes.py b/src/dipdup/runtimes.py
index a9f366eb8..48da0c763 100644
--- a/src/dipdup/runtimes.py
+++ b/src/dipdup/runtimes.py
@@ -122,7 +122,7 @@ def get_spec_version(self, name: str) -> SubstrateSpecVersion:
             except FileNotFoundError:
                 # FIXME: Using last known version to help with missing abis
                 last_known = sorted_glob(self.abi_path, 'v*.json')[-1].stem
-                _logger.info('using last known version `%s`', last_known)
+                _logger.debug('using last known version `%s`', last_known)
                 self._spec_versions[name] = self.get_spec_version(last_known[1:])
 
         return self._spec_versions[name]