4.6.21

• Alerts change once a minute (were every 6 s)
• No aurora alert for a faint aurora (Kp under 3.5) unless NOAA's nowcast says likely
• Status line changes are drawn just after the screen's scan passes them, to stop tearing

4.6.20

• Rocket launch plays across the boot screen
• Settings: new Satellites tab (LEO cone, LEO, Starlink, MEO, GEO, Debris, Sat Trails); tab icons above their names
• Tap an alert for its details: the object's card, or a details card for launches, events, passes, aurora, alignments, eclipses and seasons
• Alert icons centred on their text
• Firmware update screen: progress bar moves during the download

4.6.19

• Launch animation: ground smoke clears by 35% of the climb (was 70%), so it no longer bogs down early

4.6.18

• Fixes the 4.6.17 boot loop: drawing the launch animation's rocket at boot no longer trips the task watchdog

4.6.16

• 32 KB instruction cache (was 16 KB): code runs from PSRAM, which the display keeps busy, so cache misses made the launch animation's display calls take milliseconds each

4.6.15

• Planet page: "Tonight's phase" switch (lower right) shades the photo for the phase or shows the full disc; drawn planet removed
• Alert icons centred on the first line of text
• Launch animation: CPU/PSRAM probes and per-call timing in the log; rocket only re-rotated every 1.5°

4.6.14

• Launch animation: finer timing in the log; hidden smoke no longer redrawn; fallback frame timer waits 150 ms