1.6.0

Changed

• Fixed-cap data setters now throw ValueError on oversized array input instead of silently truncating to the internal cap.
• setFontPath() now throws when open_basedir denies the path, instead of silently returning $this.
• renderJpeg() now takes ?int $quality = null (was int = 0) so the reflected default no longer throws; null uses the setJpegQuality value.

Fixed

• config.w32: the pdfio probe now searches include\pdfio and accepts pdfio1.lib, matching Windows source-build layout (#12).
• addOverlaySeries() now enforces count/value caps and expands Line/Area/Bar/BoxPlot ranges for finite overlay values.
• setImageMap() rejects over-cap input without discarding the prior valid map; donut/scatter hotspots now match the drawn geometry.
• Waterfall / ParetoChart now render vertical annotations and horizontal / vertical bands, matching the 1.5.0 API notes.
• QrCode::setData() rejects payloads above the QR version-40 text ceiling at setter time.
• Data setters now validate input caps before dropping prior data, so a caught over-cap ValueError no longer wipes a valid chart.
• BarChart::getImageMap() no longer returns stale hot-spots after a render aborts on a validation error (e.g. log scale, negative data).
• Plot bands and Area fills with libgd alpha 127 now render fully transparent instead of leaking a rgba(...,0.004) trace.
• Symbol JPEG output honours the configured background colour when the background is transparent, instead of flattening to white.