  Using Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky
Transient Facility (ZTF) data, I found that the SW Sex star V1315 Aql entered a
low state early in 2023. As far as I know, this is the first such an event
since the discovery of this object with observations dating back to 1948. This
object is renowned for its nova shell and the nova explosion was estimated to
occur 500-1200 yr ago, although no direct detection of a nova eruption was
present in the historical record. The present low state probably occurred as
the mass-transfer rate from the nova-irradiated secondary decreased secularly.
The present low state would provide an opportunity to study the secondary in
detail, which has been hampered by the luminous accretion disk in the past. I
also provide the recent light curve of the classical nova LV Vul, which now
shows high and low states 50 yr after the nova eruption.
