Mid-air refuelling is the biggest problem.
Link for december?
And increasing AoA to 28 is still pending. Tejas has a long long way to go before it can be cleared for induction
LSP-8 with refuelling probe.
As for BVR,This was reported in October.
"Military sources say Tejas SP-1 flew for 25 minutes and touched a maximum speed of 0.6 Mach.Maiden outing without telemetry support seen as a morale booster for HAL, ADA, NFTC teams.
Tejas likely to fire #DebryBVRAAM and #PythonAAM missiles soon(approx 3 months).
AoA (Angle of Attack) of Tejas is getting closer to 26 degrees..
2 test variants of Tejas currently on a '#bombingmission' in Jaisalmer. New bombs (250 kg & 450 kg) being tested."
Anantha Krishnan in Twitter.
Few more updates from Saurav Jha
LCA update #1: Cobham IFR and quartz radome expected to be delivered by November.
LCA update #2: Gun firing demonstrated from ground to user for all necessary parameters. Airborne testing in Jamnagar.
LCA update #3: Angle of Attack up to 26 degrees demonstrated. More testing is underway.
LCA update #4: Derby carriage trials Mid-October. Test firing by end-October. Dr TamilMani says piece of cake.
LCA update#5: IFR is not an issue once the assembly is actually delivered. Some more air to ground weapons are also being integrated.
LCA update #6: SP-1 is a completely debugged version of LSP-8 and is performing very well according to Dr Tamil Mani.