v1.00

V1.00 (2020.07.02):

GAME CONTENT CHANGES:

• Locations with higher risk are now highlighted provided the
  relevant techs have been researched. (nthykier)
• Add a new power state Offline, which applies to all bases
  under construction until they can become Active. Bases in
  the Offline state currently behave like they are in the
  Sleep state. Based on an idea from Wuzzy2 (Closes: #239,
  #245) (Xenega)
• The thrift modification from locations now also applies to
  CPU maintenance. (Xenega)

USER-VISIBLE CHANGES:

• Support better translations of strings involving numbers
  such as "X Days" or "Y Hours". (Closes: #262) (gunchleoc)
• Fix a visual glitch in the ResearchScreen if the AI had no
  available CPU because all bases are asleep. (nthykier)
• It is now possible to convert old savegames to the new format
  via the Upgrade button on the Load menu. This avoids the
  hassle of having to manually load and save each game.
  (nthykier)
• Implement lexicographic sorting of strings by using Python's
  locale.strxfrm. This provides better sorting order for
  non-English languages on all platforms where locale.strxfrm
  works. Notable exception being MacOS, where Python is
  reported to have issues still. (Closes: #271) (gunchleoc)
• Add support for mouse-wheel scrolling in pygame 2 with SDL 2,
  which re-enables scrolling in lists. (nthykier)
• Rewrite handling of "holding down key" to repeat a key press.
  This avoids false "key-repetition" with accented characters.
  Note that pygame2 with SDLv2 is needed to be able to repeat
  accented characters by holding down the key. (Closes: #281)
  (nthykier)
• Change layout of Knowledge screen. Among other things, this
  makes more room for concept names. (Closes: #270, #279)
  (Xenega)
• Location screen now disables buttons that have no effect.
  Previously, they would just do "nothing" but where still
  clickable. (nthykier)
• Ensure that singularity can start when installed and loaded
  via pkg_resources.load_entry_point. (Closes #272) (nthykier)
• Improve savegame dialog to use a translated version of the
  difficulty as default savegame and reject some invalid
  path names with a simple error message rather than an
  exception. Furthermore, the "OK" button is now disabled when
  the savegame name in invalid. (Closes #267) (gunchleoc)
• Disable Load and Delete buttons in the load savegame dialog
  when there are no savegames. (nthykier)
• Avoid a crash when clicking Load or Delete in the load
  savegame dialog where no savegames are available.
  (Closes: #274) (Xenega)
• Add number separators in statistics screen. (Closes: #266)
  (gunchleoc)
• Give text fields a distinct background color to make it easier
  to see if something is a text field and make title visible
  in darktheme. (Closes #260) (gunchleoc)
• Add Scottish Gaelic translation.
  (Closes: #256, #268, #263, #286, #287) (gunchleoc)
• Text resizing and layout changes to better accommodate for
  translations that need more space than the English text.
  (Closes: #258, #259, #263, #264, #269) (gunchleoc)
• Minimum resolution has been reduced to 100x100.
  (rofl0r, nthykier)
• Enable the game window to be resized like any other window
  e.g. by dragging in the edges of the game window. (nthykier)
• Reliably redraw the singularity screen if another window
  was moved over the game. When singularity was run with
  pygame 2, this behaviour introduced visible artifacts until
  something in the game triggered a complete redraw.
  (nthykier)
• Fix a number of bugs related to the Power state of bases
  under construction - like being able to change the power
  state of an incomplete base. Thanks to Wuzzy2 for reporting
  the issue. (Closes: #238, related to: #239, #245) (Xenega)
• Limit resolution input fields in the Options screen to digit
  characters only. Thanks to Wuzzy2 for reporting the issue.
  (related to: #236) (Xenega)
• Show the correct CPU maintenance cost for bases in the base
  screen. Thanks to Wuzzy2 for reporting the issue.
  (Closes: #243) (Xenega)
• Fix a crash with "ridiculously" small resolutions by setting
  a minimum resolution (during startup and in the options
  screen). Thanks to Wuzzy2 for reporting the issue.
  (Closes: #240) (Xenega)
• Add an OK button next to the custom resolution fields in
  the Options screen. Previously, there was a confusingly named
  button labelled Custom, which people mistook for a label
  rather than a button. Thanks to Wuzzy2 for reporting the
  issue. (Closes: #236, #242) (Xenega)
• Fix focus handling in the Knowledge screen, making keyboard
  and mouse-wheel actions much more predictable. Thanks to
  Wuzzy2 for reporting the issue. (Closes: #220) (Xenega)
• Fix bug where choosing Cancel in the Options menu would not
  roll back changes to the selected theme. (nthykier)
• Fix some minor color issues with the Nightmode theme, where
  the default color was used or text became unreadable.
  Thanks to Wuzzy2 for reporting the issue. (Closes #225, #227)
  (nthykier)
• Make room for longer tech names in the Knowledge screen to
  account for some tech names being significantly longer in
  translations. Thanks to Wuzzy2 for reporting the issue.
  (Closes #219) (nthykier, Xenega)
• Fix a regression where changing the language in game would
  fail to update the tech names and descriptions.
  (Closes: #232) (nthykier)
• Fix crash in the Load dialog when clicking Load if no game
  was selected. (nthykier)
• When building bases or CPU for a base, show the correct CPU
  provided when the base/CPU is constructed. Previously it would
  not take location and base modifiers into account. Thanks to
  Wuzzy2 for reporting the issue. (Closes: #230) (nthykier)
• Fix bug where clicking Cancel in the Options menu would still
  commit changes to selected warnings. Thanks to Wuzzy2 for
  reporting the issue. (Closes: #230) (nthykier)
• Use correct number separator for money under non-English
  locales (e.g. comma in German) when measured in millions
  or more. Thanks to Wuzzy2 for reporting the issue.
  (Closes: #226) (nthykier)
• Ensure that the about menu text is extracted for translations
  Thanks to Wuzzy2 for reporting its absence. (Closes: #218)
  (nthykier)
• Fix a bug where part of the tech description in the Knowledge
  menu was not translatable. Thanks to Wuzzy2 for reporting it.
  (Closes: #217) (nthykier)
• Fix overly precise durations due to missing rounding when
  displaying construction times in Python3. Thanks to
  Wuzzy2 for reporting it. (Closes: #222) (nthykier)
• Make scrollbar arrows visible in "Nightmode" theme.
  Thanks to Wuzzy2 for reporting it. (Closes: #221)
  (nthykier)
• Add updated German translation. (Closes: #215, #223, #288)
  (Wuzzy2)
• Fix bug where "Concepts" in the "Knowledge" menu was not
  translatable. (Closes: #216) (nthykier)

OTHER CHANGES:

• Update path name for AUTHORS.txt and Changelog.txt in
  MANIFEST.in (Closes: #275) (nthykier)
• Update the URLs to the music to reflect their new location.
  (MestreLion)
• In debug mode (--debug), highlight which part of the screen
  has been redrawn by drawning a box around it. (nthykier)
• Fix some internal bugs that lead to unnecessary redraws of
  some of the text panels in the map screen. (nthykier)

Thanks to Wuzzy2, rofl0r, gunchleoc, and LW-archlinux, Quix0r for
filing bugs, play testing and moral support.

v1.0beta1

v1.0b1 (2020.02.16):

USER-VISIBLE CHANGES:

• Show a summary of the bases under the CPU and money display.
  (Closes: #155, #196) (nthykier)
• Fix a bug where Australia would never get a modifier if the game
  was created with python3. (nthykier)
• Fix a crash when accessing the Log menu when playing a game loaded
  from a 1.0a1 (or later) game.

OTHER CHANGES:

• Documented known issues with running singularity on MacOS in the
  README. Please see #197 for more details. Thanks to yiwangwuqian
  for reporting and Diegus83 for debugging it and finding a
  possible solution. (nthykier)
• All translations are now done via ".po" files (GNU Gettext) to
  ensure everything uses the same work flow for translators.
  (nthykier)
• Refactor handling of regional modifiers. This caused a bump in
  the savegame format, which means games saved by 1.0b1 cannot
  be loaded in earlier versions of singularity. (nthykier)

v1.0alpha2

v1.0a2 (2019.12.28):

GAME CONTENT CHANGES:

• The location Antarctic is now considered as safe as the Ocean
  location and can therefore be used to research certain dangerous
  technologies. (Closes: #173) (Xenega, nthykier)
• Several key technologies can no longer be researched in Urban
  areas. (Closes: #173) (Xenega, nthykier)

USER-VISIBLE CHANGES:

• Fix hotkey clash between "PAUSE" and "PREV". (Closes: #212)
  (danuker, nthykier)
• Improve keyboard + focus handling for most dialogs by passing
  keyboard events on to lists, sliders and text fields in the
  dialog. This enables most dialogs to be handled entirely using
  keyboard only. (Closes: #209, #211) (nthykier)
• Replace the GUI click sound to be softer. (Closes: #201, #210)
  (danuker)
• Fix crash when loading an old savegame, where the player was
  researching something that is now not possible due to balancing
  changes. The game would be often be playable for a short while
  until something triggered a recalculation of CPU usage. (nthykier)
• Fix incomplete substitution in log messages about bases being lost
  due to lack of maintenance. (nthykier)
• Fix a crash when loading a 1.0alpha1 savegame and opening the log.
  (Closes: #208) (nthykier)
• Reduced the default size for text to ensure that most text fields
  have a consistent text size. (Closes: #200) (nthykier)
• Text fields now respond to the HOME + END keys and they move the
  cursor to the start and end of the text field. (nthykier)
• Show the correct warning when attempting to load unsupported
  savegames. Previously, it would silently be omitted. (nthykier)
• Support loading old savegames with a particular corruption where
  the number of items in a base were sometimes set to the invalid
  value of 0. The only sane fix is to reset the counter to 1 at
  the expense of some bases "losing" CPU. (Closes:
  https://bugs.launchpad.net/ubuntu/+source/singularity/+bug/931037,
  https://code.google.com/p/endgame-singularity/issues/detail?id=107)
  (nthykier)
• Using the arrow keys on the research slider no longer trips "two"
  clicks rather than one. (Closes: #207,
  https://bugs.launchpad.net/ubuntu/+source/singularity/+bug/531871)
  (nthykier)
• Buttons to construct base items are now disabled when the player
  cannot built any item of that particular item.
• Fixed a crash in the build dialog for a base if you tried to build
  a security item but had not researched any for that particular base.
  (Closes: #206) (nthykier)
• Added savegame compat for some older development savegames known as
  "0.31pre" by discarding the log entries from them. (Closes: #198,
  #199) (nthykier)
• Fixed a bug where trigger times of events where reset on loading
  the game leading them to last longer than they should. (nthykier)

OTHER CHANGES:

• Include version information in the error log to simplify reporting
  of bugs and crashes. (nthykier)

v1.0alpha1

v1.0a1 (release 2019.12.07):

GAME CONTENT CHANGES:

• Endgame requires a lot less grinding (emh, Xenega)
• New early-midgame bases to make the progression into the
  midgame more smooth (Xenega)
• All CPUs have been rebalanced. Notably midgame CPUs have
  a much better cost/effeciency ratio and endgame CPUs have
  been nerfed considerably (Xenega)
• New security and reactor items are now available
  (Xenega)

USER-VISIBLE CHANGES:

• Show standard costs and detection chances of items and bases
  in the Knowledge screen excluding any location modifiers
  (Xenega)
• Show location modifiers more prominently in the location screen
  and the dialog for constructing a new base (Xenega)
• Show difficulty setting and in-game time for new savegames
  (Xenega)
• Loading an old savegame (e.g. from 0.30c) will now
  retroactively apply the game data from the latest version
  of Singularity - including making new game content
  researchable (Closes: #56, #122, #145) (nthykier)
• Unify multiple messages into a single dialog with multiple
  pages. This new dialog also supports resuming the game
  instead of forcing the game to be paused (Xenega)
• Events can now expire and two non-unique events now do.
  Previously, they could reappear continously possibly
  making the game almost impossible (or completely
  neutering the affected group) (nthykier)
• The cash display now shows the expected cash change over
  the next 24 hours next to the current cash. Likewise, the
  CPU display includes how much spare CPU there is after
  maintenance and construction. These numbers also include
  purchases currently under consideration
  (Closes: #21, #100) (nthykier)
• Support searching for a savegame by name in the Load
  dialog (nthykier)
• Make the base type and its total CPU visible in the list
  of bases at a given location (Closes: #64) (nthykier)
• Fix a crash when savegame names contained non-ASCII UTF-8
  characters (Closes: https://bugs.debian.org/718447)
  (nthykier)
• Fix visual lag at the highest game speed due to recalculating
  the "day/night" layers (nthykier)
• It is now possible to use double-click as a short-cut for
  "Open base" when viewing the list of bases at a Location.
  (nthykier)
• Base purchase screen now provides more details about the base,
  including accurate purchase and maintenance cost plus detection
  rates (at the level the player is allowed to see them)
  (Xenega)
• Ensure that CPU allocations are re-allocated properly when the
  player loses too much CPU at a given danger level (Closes: #103)
  (Xenega)
• Have a separate volume bar for music and sounds (Closes: #90)
  (Xenega)
• Use the XDG Base Directory Specification on relevant platforms
  (Closes: #53) (Xenega)
• Support deleting existing savegames via the Load screen
  (Closes: #48) (Xenega)
• Select the amount of CPU at the same dialog as the CPU selection
  dialog (Xenega)
• Add new "nightmode" theme (Closes: #119) (cryptarch)
• Theming support to change background image, colors, fonts, etc.
  The themes can have language specific content (e.g. fonts better
  suited for the given language) (MestreLion, Xenega)
• Support changing language without restarting the game
  (Xenega)
• Add warnings for some common issues such as when the player only
  has one base left or that when changing CPU of a base will remove
  existing CPU (Closes: #17) (Xenega)
• Support renaming bases (Xenega)
• Add a 24-hour finance report (Xenega)
• Fix various bugs in the shown detection rates (juise)
• The game now records a log of the latest events that happened
  (Xenega, nthykier)
• Fix issue where build times were affected by game speed (Closes: #18)
  (Xenega)
• Singularity no longer proposes resolutions larger than the detected
  display size and now defaults to 1024x768 as the new default
  (MestreLion)
• Persisting changes in the Options is now automatic on "OK"
  (MestreLion)
• Limit total amount of cash to avoid overflow (Closes: #110)
  (MestreLion)
• Use 2 decimal places when displaying cash or CPU for large numbers
  (MestreLion)
• Reset music when starting a new or loading an existing game (Closes: #100)
  (MestreLion)
• Fixed techs being reset if language is changed mid-game (Closes: #99)
  (MestreLion)
• Saved games list now sorted in in-game load dialog (MestreLion)
• Fixed events not being translated when language changes in-game (Closes: #128)
  (MestreLion)
• Fixed --singledir and --multidir being ignored for saves, preferences, music
  and error log. Also, if possible (Python >= 2.6), error.log is now created
  only when (and if) an error actually occurs (MestreLion)
• Added Brazilian Portuguese (pt_BR) translation (Closes: #130)(MestreLion)
• Updated es_AR translation (Closes: #20)(justapawn)
• Try to use user's locale, or a similar language, as game language (MestreLion)
• Launcher for Linux is now "singularity"
• Revamped Options screen, including new resolutions (MestreLion, Xenega)

OTHER CHANGES:

• Refactored code into a top-level module called singularity instead of using
  generic top-level python modules nad improve setup.py to be setuptools
  compatible (Closes: #12) (rardiol)
• New savegame format based on JSON to avoid a savegame format that can include
  arbitrary code execution via Python's pickle module. Please note that any old
  style savegame will still trip the picke-based codepaths already in the
  savegame listing to simplify the process for players upgrading from 0.30c
  (Closes: #52) (nthykier)
• Add basic documentation of the data files in the docs/ folder of the Github
  repo (nthykier)
• Work around a file descriptor "leak" in Pygame. This fix requires Pygame
  1.9.2 or later to fully plug the leak (Closes: #156) (nthykier, Xenega)
• Add a small test suite and CI testing to catch trivial mistakes earlier
  (nthykier)
• Port the game to run on Python3 (Closes: #15, #169) (Rardiol, nthykier)
• Include a singularity.desktop file (Matthias Mailänder)
• Fix crash related to large font sizes (MestreLion)
• Created .gitignore and .gitattributes files to aid development (Mestrelion)
• New i18n and hotkey approach. E:S is now fully translatable (MestreLion)
• New tools under utils/ dir (MestreLion)
• Use ~/.config/singularity for preferences dir, in a backward-compatible way
  with previous releases: if ~/.endgame is found it is used instead (MestreLion)
• Added ~/.local/share/singularity/music as additional source for music, with a
  symlink in preferences folder pointing to it (MestreLion)

Thanks

Thanks to (in no particular order) for filing bugs, play testing and moral
support:

Quix0r, dwentz89, rofl0r, PeterJust, cryptarch, Musickiller, smiley1983,
osjc, ardapekis, quantuumsnot, sbosshardt