Starting from IDA 9.0 and refined in 9.1, is the modern way to manage FLIRT signatures.
The IDA Pro SDK is a set of libraries and APIs that allow developers to create custom plugins, scripts, and tools for IDA Pro. The SDK provides access to IDA Pro's internal functionality, enabling developers to extend and automate various tasks. The IDA Pro 9.0 SDK introduces several significant changes and improvements: ida pro 91250226 win mac lin ux sdk and utilities work
Flag -B (batch) auto-analyzes; -A disables GUI. Starting from IDA 9
Previously sold “perpetual” licenses still work but do not receive updates unless you purchase annual support. ida pro 91250226 win mac lin ux sdk and utilities work