With more big Russian support since end september mainly about 50 fighters bombers ...maybe also deliveries as T-90 by example but seems in few qty all arriving hidden with Ropucha/Alligators pass through the Turkish Straits with definitely ammunitions.The situation in Syria has clearly improved since end November
For areas controled by sides/Front lines change interesting see maps for a comparison, come on Jura your the specialist
The tempo of Russian air operations slowed considerably from January 4 - 7. ISW was only able to confirm 17 locations of Russian airstrikes during the reporting period, the lowest volume of Russian strikes since early October 2015. The cause of this decrease currently remains unclear; as the lull may have been caused by changing weather conditions, shifts in Russian posturing inside Syria, or deferred maintenance activities following several weeks of heavy Russian airstrikes.