- Two new Custom Theories: 'Magnetic Fields' and 'Basel Problem'. - Updated the Riemann Zeta Function custom theory. - Added a max currency label in the publication popup of Custom Theories. - Added the τ value of the active Custom Theory on the offline calculation screen. - Fixed: Some forms of the custom theory URL were not considered as being in the official repository. - Fixed: Variable 'b' of the Riemann Zeta CT could not be fully bought by the auto buyer. - Fixed: API - The 'Keyboard.NUMERIC' property was not behaving as expected for non-English OS languages. - Fixed: API - Crash when providing invalid quaternary entries.

Fixed: Leaderboard metadata was incomplete. Updated localization.

Fixed: Issue with how rewards were counted. Fixed: The app name contained a wide space on the home screen.

Fixed: The game thread could stop working when coming back to game in some occasions.

New Custom Theory: Riemann Zeta Function. Fixed: The offline calculation screen could appear for times less than 2 minutes. Fixed: Stars would stop accumulating when an infinity was reached. Fixed: The language selection screen could have a white background on first launch.

Fixed: The leaderboard f(t) value wasn't based on 'Lifetime f(t)'. Fixed: Some Custom Theories could sometime timeout prematurely. Increased the timeout to 15 seconds. Fixed: Some typos in translations.

Custom Theory SDK: - Fixed: Properties of stateful UI components did not always reflect the displayed value. - Fixed: It was possible to make recursive calls to a theory function and crash the game.

- Two new Custom Theories: Fractional Integration and Fractal Patterns - The tau contribution from official Custom Theories have quadrupled. - The tau limit has also been increased. - Fixed: The theory automator freeze. - Fixed: Official Custom Theory indices. - Fixed: Formatting in the save slot window. - Various additions to the Custom Theory SDK.

Fixed: Custom Theories would sometimes generate an error when the game is closing. Fixed: Numerical values in the summary bar would sometimes wrap to the next line. Added two more save slots.

- New language: Lithuanian! - Fixed: Music could not be turned off on some devices. - Fixed: The game was not always saved when closing the app. - Custom Theories: - Fixed: The theory list did not assign the correct symbol and other theories were not really sorted by name. - Custom Theory API: - Fixed: Sliders did not correctly handle 'minimum' and 'maximum' in the constructor. - Fixed: CustomCost with 'max' buy amount did not work. - Fixed: Milestones did not update when 'maxLevel' is modified. - Added a grace period of 1 to 2 seconds (randomized) to the acceleration button. - Slowed down the deceleration of the acceleration (I know... it sounds strange). - Added a decimal to the mantissa of b, db, and μ when the exponent is over 10,000. - Fixed some UI glitches. - Fixed some exploits. - Fixed a bad behavior with bulk purchases and auto-buyers, e.g., buy amount is x10 and max level is 8.

- Improved list of Custom Theories - Added 'Slider' to API - Added star rewards to API - Fixed various issues in SDK - Minor UI fixes

- New language: Serbian (Cyrillic)! - Two new Custom Theories. - Increase tau limit of Custom Theories to 1e150. - Custom Theory API: Added custom variables to the MathExpression. - Custom Theory API: Added 'get3DGraphTranslation'. - Custom Theory API: The tertiary equation bounding box now adapts to its content. - Various bug fixes

Fixed: Custom Theories - Crash when there are no regular upgrades. Fixed: Save slots could be overwritten on rare occasions when switching slot.

- New language: Czech! - Theory SDK: Added a way to provide a cumulative and max function to custom cost models. - Theory SDK: Added a way to display milestones and publication goals in terms of the currency. - Fixed: Having an auto-buyer without the 'Buy All' button didn't allow to display the upgrade toggles. - Fixed: The active Custom Theory could get deselected. - Fixed: Time and date format in the language popup.

- Added onPressed and onReleased to the Button API. - The URL of a Custom Theory can now be copied to clipboard. - Official custom theories are now hard capped to 1e100τ. - Fixed: Progress of achievements in the category 'Custom Theory' was not implemented. - Fixed: During the 1.4.21 update, T9 could display the wrong upgrades until restarting the game. - Fixed: The value of tau could be miscalculated in custom theories.

- Fixed: Offline calculation screen was always displayed. - Fixed: Math Expressions did not consider tau from theories. - Fixed: Rewarded Ads had a strange behavior (players were not penalized). - Fixed: Game could still run in background - Minor changes to the API.

Semi-major update: Make you own theories or play theories made by other players. Custom theories become available after completing the story.

- 3 new languages: Latvian, Portuguese (Portugal), and Slovak! - New 'Light' theme. - Fixed: Two variables did not have proper subscripts in Lemma 7. - Fixed: Some upgrades with equal cost could display different number of decimals. - Fixed: Popups could sometimes be shown over the offline progress screen. - Fixed: The tickspeed of theory 1 was not properly updated after publishing.

- Fixed: The last milestone in Theory 4 wasn't doing anything (it does now). - Fixed: Theories 2, 4, and 6 could get abnormally high values of 'q' and 'r' after offline progress. - Fixed: Inconsistent rounding in the offline progress screen. - Fixed: Secret Achievement 8 was more permissive than it should. - Fixed: It was possible to buy a milestone that was dependant on another refunded one.

- Added parsing of numbers the form 1.0e-5. - Fixed: Tau was not following the same rounding rule as currencies. - Fixed: Minigame popups could be popped twice. - Fixed: Theory 8 started before the first purchase. - Fixed: An equation was not updated correctly in Theory 9. - Fixed: Achievements for spent stars did not consider minigame purchases.

- 2 new languages: Norwegian and Ukrainian! - Fixed: The app would silently crash when exiting the game using the back button. - Fixed: The cost of Prestige and Supremacy upgrades didn't follow the same formatting rule as their currencies. - Fixed: Currencies will now be rounded down and costs will be rounded up when displayed. - Fixed: Music continued to play in background on some devices. - Fixed: Some expressions generated cryptic exceptions.

- 3 new languages: Arabic, Farsi, and Hebrew! - Added the eye icon to the publication window. - Reduced the overlap of variables labels that could happen in some specific occasions. - Fixed: Parts of Theory 9 could start too early. - Fixed: Setting music to 'off' could still generate static noise when connected to a Bluetooth device.

- 1 new language: Indonesian! - The values of 'b' and 'mu' are now displayed only with scientific notation. - Fixed: The UI was too big on small screens. - Fixed: Colors on MiUi OS (take 2). - Fixed: Cost comparison was wrong with permanent levels in some occasions. - Updated translations: French, Japanese, Korean, Vietnamese.

- Increased the contrast of both themes. - 1 new language: Korean! - Fixed: Missing characters in the Chinese Traditional font.

- The game will now save after a graduation or a publication. - 1 new language: Japanese! - Changed the Chinese fonts to sans serif to improve readability. - Fixed: Slight misalignment in the summary bar. - Fixed: Equation of Theory 3 had an offset depending on the device's DPI.