# Improvements to AdMob service, list of engine features added since last release, and more articles about CGE from Andrzej Kilijański

**URL:** https://forum.castle-engine.io/t/improvements-to-admob-service-list-of-engine-features-added-since-last-release-and-more-articles-about-cge-from-andrzej-kilijanski/90
**Category:** News
**Created:** [July 26, 2019, 7:46pm UTC](https://forum.castle-engine.io/t/improvements-to-admob-service-list-of-engine-features-added-since-last-release-and-more-articles-about-cge-from-andrzej-kilijanski/90 "2019-07-26T19:46:56Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![michalis](https://forum.castle-engine.io/user_avatar/forum.castle-engine.io/michalis/32/3_2.png) [@michalis](https://forum.castle-engine.io/u/michalis)
#### Post date: [July 26, 2019, 7:46pm UTC](https://forum.castle-engine.io/t/improvements-to-admob-service-list-of-engine-features-added-since-last-release-and-more-articles-about-cge-from-andrzej-kilijanski/90/1 "2019-07-26T19:46:56Z")

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| [![Castle Game Engine logo with title](https://castle-engine.io/wp/wp-content/uploads/2019/07/cge_logo_with_text-200x238.png)](https://castle-engine.io/wp/wp-content/uploads/2019/07/cge_logo_with_text.png "Castle Game Engine logo with title") |

Andrzej Kilijański wrote a few very nice articles about _Castle Game Engine_ recently:

1. [Updates in Castle Game Engine Admob Service](https://digitalkarabela.com/updates-in-castle-game-engine-admob-service/) (also [available in Polish](https://digitalkarabela.com/pl/aktualizacja-modulu-admob-w-castle-game-engine/)) describing his recent improvements to our AdMob [Android Service](https://github.com/castle-engine/castle-engine/wiki/Android-Services).

We support now _reward ads_ from AdMob, and the callback [TAds.OnFullScreenAdClosed](https://castle-engine.io/apidoc-unstable/html/CastleAds.TAds.html#OnFullScreenAdClosed) provides now detailed information _why_ the user did not watch ad.

See also [wiki page listing breaking changes in CGE](https://github.com/castle-engine/castle-engine/wiki/Upgrading-to-Castle-Game-Engine-6.6) for more information how you can upgrade your code.

2. [Castle Game Engine stable 6.4 or beta 6.5 which version to use?](https://digitalkarabela.com/castle-game-engine-stable-6-4-or-beta-6-5-which-version-to-use/) (also [available in Polish](https://digitalkarabela.com/pl/castle-game-engine-wersja-stabilna-6-4-czy-beta-6-5/)). 

3. [Free Pascal OpenGL App – Exception on window close](https://digitalkarabela.com/free-pascal-opengl-app-exception-on-window-close/) (also [available in Polish](https://digitalkarabela.com/pl/free-pascal-i-opengl-wyjatek-przy-zamknieciu-okna/)). This may affect you if you use Linux with proprietary NVidia drivers and stable FPC. The solution is to upgrade your FPC version, a process described in detail in the article.

Thousand thanks go to Andrzej Kilijański for writing these articles, and for continuously submitting new improvements to CGE! [You can follow all his posts here](https://digitalkarabela.com/), [or you can also follow only CGE-related stuff in English](https://digitalkarabela.com/category/gamedev/castle-game-engine/) or [CGE-releated stuff in Polish](https://digitalkarabela.com/pl/category/gamedev-pl/castle-engine-pl/).

Andrzej also added [ASTC (texture compression)](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression) support to CGE lately, which is a nice GPU-compressed format available on most mobile devices (starting from 2nd generation of Mali-T600 series, Adreno 400, Apple A8). [CGE now understands it (when ASTC images are inside KTX file format) and can auto-generate textures compressed to ASTC](https://castle-engine.io/creating_data_auto_generated_textures.php).