Update changelog links and tests after Git tag archival (#1752)

The Git tags for buildpack releases v208 to v265 have been
archived (renamed from `vNNN` to `archive/vNNN`) for
the reasons in #1699 (similar to the process performed in
the past for release v207 and older).

As such, the changelog compare URLs need updating, as do
the test fixtures that test building an app whose last (cached)
build was performed using an older version of the buildpack.

Closes #1699.
GUS-W-17308840.

Author: edmorley

CHANGELOG.md

@@ -1180,65 +1180,65 @@ Default Python is now latest 2.7.10. Updated pip and Distribute.
 [v269]: https://github.com/heroku/heroku-buildpack-python/compare/v268...v269
 [v268]: https://github.com/heroku/heroku-buildpack-python/compare/v267...v268
 [v267]: https://github.com/heroku/heroku-buildpack-python/compare/v266...v267
-[v266]: https://github.com/heroku/heroku-buildpack-python/compare/v265...v266
-[v265]: https://github.com/heroku/heroku-buildpack-python/compare/v264...v265
-[v264]: https://github.com/heroku/heroku-buildpack-python/compare/v263...v264
-[v263]: https://github.com/heroku/heroku-buildpack-python/compare/v262...v263
-[v262]: https://github.com/heroku/heroku-buildpack-python/compare/v261...v262
-[v261]: https://github.com/heroku/heroku-buildpack-python/compare/v260...v261
-[v260]: https://github.com/heroku/heroku-buildpack-python/compare/v259...v260
-[v259]: https://github.com/heroku/heroku-buildpack-python/compare/v258...v259
-[v258]: https://github.com/heroku/heroku-buildpack-python/compare/v257...v258
-[v257]: https://github.com/heroku/heroku-buildpack-python/compare/v256...v257
-[v256]: https://github.com/heroku/heroku-buildpack-python/compare/v255...v256
-[v255]: https://github.com/heroku/heroku-buildpack-python/compare/v254...v255
-[v254]: https://github.com/heroku/heroku-buildpack-python/compare/v253...v254
-[v253]: https://github.com/heroku/heroku-buildpack-python/compare/v252...v253
-[v252]: https://github.com/heroku/heroku-buildpack-python/compare/v251...v252
-[v251]: https://github.com/heroku/heroku-buildpack-python/compare/v250...v251
-[v250]: https://github.com/heroku/heroku-buildpack-python/compare/v249...v250
-[v249]: https://github.com/heroku/heroku-buildpack-python/compare/v248...v249
-[v248]: https://github.com/heroku/heroku-buildpack-python/compare/v247...v248
-[v247]: https://github.com/heroku/heroku-buildpack-python/compare/v246...v247
-[v246]: https://github.com/heroku/heroku-buildpack-python/compare/v245...v246
-[v245]: https://github.com/heroku/heroku-buildpack-python/compare/v244...v245
-[v244]: https://github.com/heroku/heroku-buildpack-python/compare/v243...v244
-[v243]: https://github.com/heroku/heroku-buildpack-python/compare/v242...v243
-[v242]: https://github.com/heroku/heroku-buildpack-python/compare/v241...v242
-[v241]: https://github.com/heroku/heroku-buildpack-python/compare/v240...v241
-[v240]: https://github.com/heroku/heroku-buildpack-python/compare/v239...v240
-[v239]: https://github.com/heroku/heroku-buildpack-python/compare/v238...v239
-[v238]: https://github.com/heroku/heroku-buildpack-python/compare/v237...v238
-[v237]: https://github.com/heroku/heroku-buildpack-python/compare/v236...v237
-[v236]: https://github.com/heroku/heroku-buildpack-python/compare/v235...v236
-[v235]: https://github.com/heroku/heroku-buildpack-python/compare/v234...v235
-[v234]: https://github.com/heroku/heroku-buildpack-python/compare/v233...v234
-[v233]: https://github.com/heroku/heroku-buildpack-python/compare/v232...v233
-[v232]: https://github.com/heroku/heroku-buildpack-python/compare/v231...v232
-[v231]: https://github.com/heroku/heroku-buildpack-python/compare/v230...v231
-[v230]: https://github.com/heroku/heroku-buildpack-python/compare/v229...v230
-[v229]: https://github.com/heroku/heroku-buildpack-python/compare/v228...v229
-[v228]: https://github.com/heroku/heroku-buildpack-python/compare/v227...v228
-[v227]: https://github.com/heroku/heroku-buildpack-python/compare/v226...v227
-[v226]: https://github.com/heroku/heroku-buildpack-python/compare/v225...v226
-[v225]: https://github.com/heroku/heroku-buildpack-python/compare/v224...v225
-[v224]: https://github.com/heroku/heroku-buildpack-python/compare/v223...v224
-[v223]: https://github.com/heroku/heroku-buildpack-python/compare/v222...v223
-[v222]: https://github.com/heroku/heroku-buildpack-python/compare/v221...v222
-[v221]: https://github.com/heroku/heroku-buildpack-python/compare/v220...v221
-[v220]: https://github.com/heroku/heroku-buildpack-python/compare/v219...v220
-[v219]: https://github.com/heroku/heroku-buildpack-python/compare/v218...v219
-[v218]: https://github.com/heroku/heroku-buildpack-python/compare/v217...v218
-[v217]: https://github.com/heroku/heroku-buildpack-python/compare/v216...v217
-[v216]: https://github.com/heroku/heroku-buildpack-python/compare/v215...v216
-[v215]: https://github.com/heroku/heroku-buildpack-python/compare/v214...v215
-[v214]: https://github.com/heroku/heroku-buildpack-python/compare/v213...v214
-[v213]: https://github.com/heroku/heroku-buildpack-python/compare/v212...v213
-[v212]: https://github.com/heroku/heroku-buildpack-python/compare/v211...v212
-[v211]: https://github.com/heroku/heroku-buildpack-python/compare/v210...v211
-[v210]: https://github.com/heroku/heroku-buildpack-python/compare/v209...v210
-[v209]: https://github.com/heroku/heroku-buildpack-python/compare/v208...v209
-[v208]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v207...v208
+[v266]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v265...v266
+[v265]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v264...archive/v265
+[v264]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v263...archive/v264
+[v263]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v262...archive/v263
+[v262]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v261...archive/v262
+[v261]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v260...archive/v261
+[v260]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v259...archive/v260
+[v259]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v258...archive/v259
+[v258]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v257...archive/v258
+[v257]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v256...archive/v257
+[v256]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v255...archive/v256
+[v255]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v254...archive/v255
+[v254]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v253...archive/v254
+[v253]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v252...archive/v253
+[v252]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v251...archive/v252
+[v251]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v250...archive/v251
+[v250]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v249...archive/v250
+[v249]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v248...archive/v249
+[v248]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v247...archive/v248
+[v247]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v246...archive/v247
+[v246]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v245...archive/v246
+[v245]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v244...archive/v245
+[v244]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v243...archive/v244
+[v243]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v242...archive/v243
+[v242]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v241...archive/v242
+[v241]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v240...archive/v241
+[v240]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v239...archive/v240
+[v239]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v238...archive/v239
+[v238]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v237...archive/v238
+[v237]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v236...archive/v237
+[v236]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v235...archive/v236
+[v235]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v234...archive/v235
+[v234]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v233...archive/v234
+[v233]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v232...archive/v233
+[v232]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v231...archive/v232
+[v231]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v230...archive/v231
+[v230]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v229...archive/v230
+[v229]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v228...archive/v229
+[v228]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v227...archive/v228
+[v227]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v226...archive/v227
+[v226]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v225...archive/v226
+[v225]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v224...archive/v225
+[v224]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v223...archive/v224
+[v223]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v222...archive/v223
+[v222]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v221...archive/v222
+[v221]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v220...archive/v221
+[v220]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v219...archive/v220
+[v219]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v218...archive/v219
+[v218]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v217...archive/v218
+[v217]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v216...archive/v217
+[v216]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v215...archive/v216
+[v215]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v214...archive/v215
+[v214]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v213...archive/v214
+[v213]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v212...archive/v213
+[v212]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v211...archive/v212
+[v211]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v210...archive/v211
+[v210]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v209...archive/v210
+[v209]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v208...archive/v209
+[v208]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v207...archive/v208
 [v207]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v206...archive/v207
 [v206]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v205...archive/v206
 [v205]: https://github.com/heroku/heroku-buildpack-python/compare/archive/v204...archive/v205

spec/hatchet/pipenv_spec.rb

@@ -322,7 +322,8 @@
   end
 
   context 'when the Pipenv and Python versions have changed since the last build' do
-    let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#v253'] }
+    # TODO: Bump this buildpack version the next time we update the Pipenv version.
+    let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#archive/v253'] }
     let(:app) { Hatchet::Runner.new('spec/fixtures/pipenv_basic', buildpacks:) }
 
     it 'clears the cache before installing' do

spec/hatchet/poetry_spec.rb

@@ -62,7 +62,7 @@
   end
 
   context 'when the Poetry and Python versions have changed since the last build' do
-    let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#v268'] }
+    let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#v274'] }
     let(:app) { Hatchet::Runner.new('spec/fixtures/poetry_basic', buildpacks:) }
 
     it 'clears the cache before installing' do
@@ -74,8 +74,8 @@
           remote: -----> Python app detected
           remote: -----> Using Python 3.13 specified in .python-version
           remote: -----> Discarding cache since:
-          remote:        - The Python version has changed from 3.13.0 to #{LATEST_PYTHON_3_13}
-          remote:        - The Poetry version has changed from 1.8.4 to #{POETRY_VERSION}
+          remote:        - The Python version has changed from 3.13.1 to #{LATEST_PYTHON_3_13}
+          remote:        - The Poetry version has changed from 1.8.5 to #{POETRY_VERSION}
           remote: -----> Installing Python #{LATEST_PYTHON_3_13}
           remote: -----> Installing Poetry #{POETRY_VERSION}
           remote: -----> Installing dependencies using 'poetry sync --only main'

spec/hatchet/python_version_spec.rb

@@ -56,7 +56,7 @@
       # - If no Python version is specified, the same major version as the
       #   last build is used (sticky versioning).
       # - Changes in the pip version are handled correctly.
-      let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#v257'] }
+      let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#v267'] }
 
       it 'builds with the same Python version as the last build' do
         app.deploy do |app|
@@ -68,7 +68,7 @@
             remote: -----> No Python version was specified. Using the same major version as the last build: Python 3.12
             remote:        To use a different version, see: https://devcenter.heroku.com/articles/python-runtimes
             remote: -----> Discarding cache since:
-            remote:        - The Python version has changed from 3.12.6 to #{LATEST_PYTHON_3_12}
+            remote:        - The Python version has changed from 3.12.7 to #{LATEST_PYTHON_3_12}
             remote:        - The pip version has changed from 24.0 to #{PIP_VERSION}
             remote: -----> Installing Python #{LATEST_PYTHON_3_12}
             remote: -----> Installing pip #{PIP_VERSION}, setuptools #{SETUPTOOLS_VERSION} and wheel #{WHEEL_VERSION}

spec/hatchet/stack_spec.rb

@@ -4,12 +4,12 @@
 
 RSpec.describe 'Stack changes' do
   context 'when the stack is upgraded from Heroku-22 to Heroku-24', stacks: %w[heroku-22] do
-    # This test performs an initial build using an older buildpack version, followed
-    # by a build using the current version. This ensures that the current buildpack
-    # can successfully read the stack metadata written to the build cache in the past.
-    # The buildpack version chosen is one which had an older default Python version, so
-    # we can also prove that clearing the cache didn't lose the Python version metadata.
-    let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#v250'] }
+    # This test performs an initial build using an older buildpack version, followed by a build
+    # using the current version. This ensures that the current buildpack can successfully read
+    # the stack metadata written to the build cache in the past. The buildpack version chosen is
+    # the oldest to support Heroku-24, and which had an older default Python version so we can
+    # also prove that clearing the cache didn't lose the sticky Python version metadata.
+    let(:buildpacks) { ['https://github.com/heroku/heroku-buildpack-python#archive/v250'] }
     let(:app) { Hatchet::Runner.new('spec/fixtures/python_version_unspecified', buildpacks:) }
 
     it 'clears the cache before installing again whilst preserving the sticky Python version' do