Written some docs + opcode optis

Author: Geolim4

CHANGELOG.md

@@ -9,6 +9,7 @@
 - Removed Apc (**but not APCu**) support which is now [completely abandoned](https://pecl.php.net/package/APC) (latest update: 2012)
 - Removed `CacheManager::getStaticSystemDrivers()` (use `CacheManager::getDriverList()` instead)
 - Added (required) cookie driver option `awareOfUntrustableData` to enforce developer awareness of non-reliable data storage
+- Removed driver option `ignoreSymfonyNotice` and its getter/setter
 - The "ActOnAll Helper" have been removed in profit of aggregated cluster support
 - Implemented #713 // Reworked "tags" feature by adding 3 strategies: `TAG_STRATEGY_ONE`, `TAG_STRATEGY_ALL`, `TAG_STRATEGY_ONLY`
 - Removed *global static* properties `CacheManager::$ReadHits`, `CacheManager::$WriteHits` replaced by`\Phpfastcache\Entities\DriverIO` callable in`\Phpfastcache\Core\Pool\ExtendedCacheItemPoolInterface::getIO`

docs/CREDITS.md

@@ -1,4 +1,4 @@
-## phpFastCache Copyright (c) 2016 - 2017
+## phpFastCache Copyright (c) 2016
 https://www.phpfastcache.com
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -19,9 +19,9 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
 
-__phpFastCache Current Project Manager:__ Georges.L (Geolim4)
+__phpFastCache Current Project Manager:__ Georges.L (Geolim4) / (v5, v6, v7, v8)
 
-__phpFastCache Former Project Founder:__ Khoa Bui (khoaofgod)
+__phpFastCache Former Project Founder:__ Khoa Bui (khoaofgod) / (<= v4)
 
 __phpFastCache Contributors:__    https://github.com/PHPSocialNetwork/phpfastcache/graphs/contributors
 

docs/migration/MigratingFromV7ToV8.md

@@ -1 +1,75 @@
-@todo :)
+Because the V8 is **relatively** not backward compatible with the V7, here's a guide to help you to migrate your code:
+
+### :warning: Minimum php version increased to 7.3+
+As of the V8 the mandatory minimum php version has been increased to 7.3+.
+Once released, the php version 8.0 will be unit-tested 
+
+### :warning: "Auto" driver removed
+As of the V8  the "Auto" driver in `CacheManager::getInstance()` has been removed.\
+You will now be mandatory to specify the driver to use.
+
+#### :clock1: Then:
+`CacheManager::getInstance('Auto')` or `CacheManager::getInstance()` expecting automatic driver chosen
+
+#### :alarm_clock: Now:
+Use `CacheManager::getInstance('Files')` or `CacheManager::getInstance('Redis')` or something else.
+
+### Removal of "APC" driver
+As of the V8  the "APC" has been removed. Use "APCu" instead.
+
+#### :clock1: Then:
+`CacheManager::getInstance('Apc')`
+
+#### :alarm_clock: Now:
+`CacheManager::getInstance('Apcu')`
+
+### Removal of "Xcache" driver
+As of the V8 the "Xcache" has been removed, no replacement have been made.\
+It is [completely abandoned](https://xcache.lighttpd.net/) (latest update: 2014)
+Use alternative memory cache such as Redis, Memcache, Ssdb, etc.
+
+#### :clock1: Then:
+`CacheManager::getInstance('Apc')`
+
+#### :alarm_clock: Now:
+`CacheManager::getInstance('Apcu')`
+
+### Phpfastcache API has been upgraded to 3.0.0
+Check `CHANGELOG_API.md` to see the changes
+
+### Phpfastcache API has been upgraded to 3.0.0
+Check `CHANGELOG_API.md` to see the changes
+
+### Removal of static counters
+As of the V8 the static I/O counter have been removed
+
+#### :clock1: Then:
+Calling `CacheManager::$ReadHits`, `CacheManager::$WriteHits`
+
+#### :alarm_clock: Now:
+Replaced by`\Phpfastcache\Entities\DriverIO` callable in`\Phpfastcache\Core\Pool\ExtendedCacheItemPoolInterface::getIO`
+
+### Removal of deprecated method `CacheManager::setNamespacePath()` 
+As of the V8 the deprecated method `CacheManager::setNamespacePath()` have been removed.
+
+#### :clock1: Then:
+Calling `CacheManager::setNamespacePath('some\custom\path')`
+
+#### :alarm_clock: Now:
+Replaced by cache manager "override" or "custom driver" features introduced in V7
+
+### Removal of deprecated method  `CacheManager::getStaticSystemDrivers()` 
+As of the V8 the deprecated method `CacheManager::getStaticSystemDrivers()` have been removed.
+
+#### :clock1: Then:
+Calling `CacheManager::getStaticSystemDrivers()` 
+
+#### :alarm_clock: Now:
+Replaced by `CacheManager::getDriverList()`
+
+------
+More infos in our comprehensive [changelog](./../../CHANGELOG.md).
+
+
+
+