diff --git a/.gitchangelog.rc b/.gitchangelog.rc
index 6378809..f12613a 100644
--- a/.gitchangelog.rc
+++ b/.gitchangelog.rc
@@ -1,57 +1,8 @@
 # -*- coding: utf-8; mode: python -*-
-##
-## Format
-##
-##   ACTION: [AUDIENCE:] COMMIT_MSG [!TAG ...]
-##
-## Description
-##
-##   ACTION is one of 'chg', 'fix', 'new'
-##
-##       Is WHAT the change is about.
-##
-##       'chg' is for refactor, small improvement, cosmetic changes...
-##       'fix' is for bug fixes
-##       'new' is for new features, big improvement
-##
-##   AUDIENCE is optional and one of 'dev', 'usr', 'pkg', 'test', 'doc'
-##
-##       Is WHO is concerned by the change.
-##
-##       'dev'  is for developpers (API changes, refactors...)
-##       'usr'  is for final users (UI changes)
-##       'pkg'  is for packagers   (packaging changes)
-##       'test' is for testers     (test only related changes)
-##       'doc'  is for doc guys    (doc only changes)
-##
-##   COMMIT_MSG is ... well ... the commit message itself.
-##
-##   TAGs are additionnal adjective as 'refactor' 'minor' 'cosmetic'
-##
-##       They are preceded with a '!' or a '@' (prefer the former, as the
-##       latter is wrongly interpreted in github.) Commonly used tags are:
-##
-##       'refactor' is obviously for refactoring code only
-##       'minor' is for a very meaningless change (a typo, adding a comment)
-##       'cosmetic' is for cosmetic driven change (re-indentation, 80-col...)
-##       'wip' is for partial functionality but complete subfunctionality.
-##
-## Example:
-##
-##   new: usr: support of bazaar implemented
-##   chg: re-indentend some lines !cosmetic
-##   new: dev: updated code to be compatible with last version of killer lib.
-##   fix: pkg: updated year of licence coverage.
-##   new: test: added a bunch of test around user usability of feature X.
-##   fix: typo in spelling my name in comment. !minor
-##
-##   Please note that multi-line commit message are supported, and only the
-##   first line will be considered as the "summary" of the commit message. So
-##   tags, and other rules only applies to the summary.  The body of the commit
-##   message will be displayed in the changelog without reformatting.
 
 ignore_regexps = [
-    r'^Bump version:',
+    r'^Bump version',
+    r'^Release version',
     r'@minor', r'!minor',
     r'@cosmetic', r'!cosmetic',
     r'@refactor', r'!refactor',
@@ -72,7 +23,6 @@ section_regexps = [
     ('Fixes', [
         r'^[fF]ix\s*:\s*((dev|use?r|pkg|test|doc)\s*:\s*)?([^\n]*)$',
      ]),
-
     ('Other', None ## Match all lines
      ),
 
@@ -88,8 +38,8 @@ tag_filter_regexp = r'v[0-9]+\.[0-9]+(\.[0-9]+)?(-(alpha|beta))?'
 
 unreleased_version_label = '[yet to be released]'
 
-output_engine = mustache('.changelog.tpl') #rest_py
+output_engine = mustache('.changelog.tpl')
 
 include_merge = True
 
-revs = [(lambda: '^v' + FileFirstRegexMatch('.bumpversion.cfg', r'current_version = (?P<rev>.*)')()), 'HEAD']
+revs = [(lambda: '^v' + FileFirstRegexMatch('./src/liblet/__init__.py', r"__version__ = '(?P<rev>.*)'")()), 'HEAD']
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 25a84e8..d0434dc 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,6 +1,17 @@
 Changelog
 =========
 
+v1.7.0a0 (2024-03-25)
+---------------------
+
+- Removed support for Python < 3.10.
+- All source are clean according to ruff.
+- Big refactoring in liblet.display, favoring composition (with the new
+  GVWrapper) over inheritance (of BaseGraph(ABC)).
+- InstantaneousDescription now uses colors instead of unicode combining
+  characters
+- Minor cleanups and fixes.
+
 v1.6.4a0 (2024-02-25)
 ---------------------
 
diff --git a/pyproject.toml b/pyproject.toml
index 108ef31..13eaa91 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -77,7 +77,7 @@ ignore = ["E501", "E731", "EM101", "EM102", "FBT002", "INP001", "N802", "N803",
 quote-style = "single"
 
 [tool.hatch.envs.devel]
-dependencies = ["gitchangelog", "pyupgrade"]
+dependencies = ["gitchangelog", "pyupgrade", "pystache"]
 
 [tool.hatch.envs.docs]
 features = ["docs"]
@@ -87,6 +87,8 @@ dependencies = ["coverage", "codecov"]
 
 [tool.hatch.envs.docs.scripts]
 build = ["./bin/docs"]
+
+[tool.hatch.envs.devel.scripts]
 changelog = ["gitchangelog"]
 
 [tool.hatch.envs.tests.scripts]