That's probably more accurate. I was conflating a long history with maturity/stability. I would guess most ~13 year old libraries are broadly more stable and bu

That's probably more accurate. I was conflating a long history with maturity/stability. I would guess most ~13 year old libraries are broadly more stable and bug-free than something a few years old but I guess anything that is being actively adapted to new problems will have inherent instability. I seriously doubt the code for reading images into an OpenCV-native format is being actively developed though. Anything being done in pattern recognition would likely not effect the library's basic IO stuff. What I was actually using it for (their RDP implementation, image thresholding) were likely pretty stable as well.