PNG 图片标准时隔 20 多年正式更新第三版：HDR、动图、Exif 支持等 PNG（Portable Network Graphics）第三版标准于6月24日正式发布，并被标记为 W3C 推荐标准。该标准旨在改进动图功能，支持高动态范围（HDR）图像，并整合自第二版以来报告的错误修复。新版本核心规范增加了广泛采用的 Animated PNG（APNG）动图格式。APNG 在 2004 年和 2005 年期间被创建并完善，但此前曾被 PNG 开发组拒绝。第三版规范使 APNG 规范与过去十年的内容和实现保持一致。此外，PNG 第三版还新增了 HDR 支持，添加 cICP 块用于包含图像格式元数据，使 PNG 能够包含 HDR 和广色域（WCG）图像。此前定义的 Exif 内容也被移至规范的主体部分。IT之家 | W3C 🏷#PNG#APNG#HDR 📢频道👥群组📝投稿
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Bot API was updated to version 6.4 Forums • Bots can now open, close, edit and toggle the visibility of the General Topic. • Added support for new service messages, like ForumTopicEdited, GeneralForumTopicHidden and more. • The method sendChatAction can now send actions to any thread or topic via the message_thread_id parameter. Spoilers • Added spoiler detection via the new has_media_spoiler field in the Message class. • Bots can send media covered by a spoiler animation via the has_spoiler field in sendPhoto, sendVideo and sendAnimation. Web Apps • Added a native QR scanner popup, controllable via showScanQrPopup and closeScanQrPopup. • Web Apps launched from the attachment menu can request clipboard text via readTextFromClipboard. • Added a platform field, showing which platform the web app is being used on. General • Added the is_persistent field, to keep ReplyKeyboards open by default. See the full changelog for details on the official website. #update#BotAPI https://t.me/+VMLgtEPNL49jZmNh
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