diff --git a/ef-CHANGELOG.md b/ef-CHANGELOG.md
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+++ b/ef-CHANGELOG.md
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+# crosspoint-ef Changelog
+
+All notable changes to the crosspoint-ef fork are documented here.
+
+Base: CrossPoint Reader 0.15.0
+
+---
+
+## ef-1.0.1
+
+**Dictionary Stability & UX Improvements**
+
+### Bug Fixes - Stability
+
+- Fixed dictionary crashes caused by heap fragmentation from repeated page navigation
+- Refactored TextBlock/ParsedText from `std::list` to `std::vector`, reducing heap allocations by ~12x per TextBlock
+  - Affects EPUB reader page rendering, dictionary definition display, and word selection
+  - Contiguous memory improves cache locality during text layout and reduces heap fragmentation on the memory-constrained ESP32
+- Added uncompressed dictionary (`.dict`) support to avoid decompression memory issues with large dictzip chunks (58KB chunks -> direct read)
+- Implemented chunked on-demand HTML parsing for large definitions, parsing pages as user navigates rather than all at once
+- Limited cached pages to 4 with re-parse capability for backward navigation beyond cache window
+- Fixed double-button press bug when loading new dictionary chunks
+
+### Bug Fixes - UI/Layout
+
+- Restored proper orientation-aware button hint spacing (front: 45px, side: 50px)
+- Added side button hints to definition screen with "<" / ">" labels for page navigation
+- Added side button hints to word selection screen ("UP"/"DOWN" labels, borderless, small font)
+- Added side button hints to dictionary menu ("< Prev", "Next >")
+- Moved page indicator up to avoid bezel cutoff in landscape orientations
+
+---
+
+## ef-1.0.0
+
+**First Official Release** (previously ef-0.15.99)
+
+First milestone release of the crosspoint-ef fork, building on CrossPoint Reader 0.15.0 with 14+ major new features and enhancements.
+
+### New Features
+
+- **Dictionary Support**: Offline StarDict dictionary with word selection from reader, fast prefix-indexed search, rich HTML formatting, and multi-page pagination
+- **Bookmark System**: Per-book bookmarks with visual folded-corner indicators, dedicated management interface, and auto-generated bookmark names
+- **Quick Menu**: In-reader quick access menu for common actions (Dictionary, Bookmark, Clear Cache, Settings) via short power button press
+- **Library Search**: Search across all books by title, author, or filename with dynamic character picker and weighted relevance scoring
+- **CSS Support**: Parse and apply CSS styles from EPUB stylesheets (text-align, font-style, font-weight, text-decoration, margins, padding)
+- **Inline Image Support**: PNG and Baseline JPEG rendering within EPUB content with 2-bit grayscale dithering and caching
+- **Custom Fonts**: Atkinson Hyperlegible Next (low-vision readers) and Fern Micro (small screens)
+- **Enhanced Web Server**: File management (upload, download, delete, rename, copy, move, mkdir), companion app API, WebSocket uploads, mDNS discovery at `crosspoint.local`
+- **Reading Lists**: Create, manage, and pin custom book lists with web API support (CSV format)
+- **Enhanced Tab Bar**: Unified tab bar with horizontal scrolling and overflow indicators (Recent, Lists, Bookmarks, Search, Files)
+- **Progress Bar Status**: Additional status bar option showing visual reading progress
+- **OPDS Browser Enhancements**: Navigation history, page skipping (hold Up/Down), error retry, HTTP Basic Auth support
+
+### Display Enhancements
+
+- **High Contrast Mode**: System-wide contrast adjustment
+- **Bezel Compensation**: Configurable margin (0-10px) for physical screen edge defects
+- **Sleep Screen Improvements**: Edge-aware color filling for seamless letterbox appearance
+
+### Bug Fixes
+
+- Fixed device hanging when booted without USB connected (Serial.available()/Serial.read() called without Serial.begin())
+- Fixed grayscale state corruption causing ghosting artifacts when anti-aliasing enabled under memory pressure
+- Memory optimization with graceful degradation when memory is low
+
+### Development Tools
+
+- `pre_flash.py`: Displays "Flashing firmware..." screen during upload
+- `debugging_monitor.py`: Enhanced serial monitor with memory graphs
+- `pio_helper.py`: Interactive PlatformIO workflow helper
+
+---
+
+## Differences from Upstream 0.16.0
+
+This fork is based on upstream 0.15.0. The following 0.16.0 features are not included:
+
+- KOReader sync support
+- Non-English hyphenation patterns (Spanish, German, French, Russian)
+- XTC/XTCH file format support
+
+See [crosspoint-ef-features.md](docs/crosspoint-ef-features.md) for complete feature documentation.
\ No newline at end of file
diff --git a/platformio.ini b/platformio.ini
index cb9963a..4cbcadf 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -2,7 +2,8 @@
 default_envs = default
 
 [crosspoint]
-version = ef-0.15.99
+# 0.15.0 CrossPoint base, ef-1.0.0 is the first release of the ef branch
+version = 0.15.ef-1.0.1
 
 [base]
 platform = espressif32 @ 6.12.0