Code change dates

Does anyone know off the top of their mind when the following issues became code in Texas? Or if the year of these changes are listed anywhere?

Lintel flashing
Lintel weepholes
Safety glass
Hose bib backflow preventers
Pressure balance/thermostatic mixing control valves
Gas line drip legs
Bathroom ventilation fans
2 pool drains or anti vortex cover

Why would you care? If they’re a safety concern report it as such, recommend correction and then move on whether the home was built in 1935 OR in 2015.