release: Prepare v1.5.0rc1

- Update version in Cargo.toml to 1.5.0-rc1
- Update Recent Updates in README.md
- Update CHANGELOG.md with new version section
- Update debian/changelog for new release
- Update manpage version to v1.5.0rc1
- Update Cargo.lock via cargo update

Author: inureyes

CHANGELOG.md

@@ -5,6 +5,88 @@ All notable changes to bssh will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.5.0-rc1] - 2025-12-17
+
+### Added
+- **pdsh Compatibility Mode** (Issues #100-103, #105, #107, #110)
+  - Full pdsh-style command line compatibility when invoked as `pdsh` or with `--pdsh-compat`
+  - `-w hosts` option mapped to `-H hosts` for target host specification
+  - `-x hosts` option mapped to `--exclude hosts` for host exclusion
+  - `-f N` option mapped to `--parallel N` for fanout control
+  - `-l user` option for remote username
+  - `-t N` option mapped to `--connect-timeout N` for connection timeout
+  - `-u N` option mapped to `--timeout N` for command timeout
+  - `-N` option mapped to `--no-prefix` for disabling hostname prefix in output
+  - `-b` option mapped to `--batch` for single Ctrl+C termination
+  - `-k` option mapped to `--fail-fast` for stop on first failure
+  - `-q` query mode to show target hosts and exit
+  - `-S` option mapped to `--any-failure` for returning largest exit code
+
+- **Hostlist Expressions** (Issue #107)
+  - pdsh-style range expansion: `node[1-5]` → node1, node2, node3, node4, node5
+  - Zero-padded ranges: `node[01-05]` → node01, node02, node03, node04, node05
+  - Comma-separated values: `node[1,3,5]` → node1, node3, node5
+  - Cartesian product: `rack[1-2]-node[1-3]` → 6 hosts
+  - Domain suffix support: `web[1-3].example.com`
+  - User and port preservation: `admin@db[01-03]:5432`
+  - File input with `^/path/to/hostfile`
+
+- **In-TUI Log Panel** (Issue #106)
+  - Toggle visibility with `l` key
+  - Color-coded by level: ERROR (red), WARN (yellow), INFO (white), DEBUG (gray)
+  - Configurable buffer size via `BSSH_TUI_LOG_MAX_ENTRIES` (default: 1000, max: 10000)
+  - Panel height adjustable from 3-10 lines with `+`/`-` keys
+  - Scroll with `j`/`k` keys, toggle timestamps with `t`
+
+- **--fail-fast Option** (Issue #103)
+  - `-k` / `--fail-fast` flag to stop immediately on first failure
+  - Compatible with pdsh `-k` option
+  - Cancels pending commands when any node fails
+  - Can be combined with `--require-all-success` for strict error handling
+
+- **--batch Option** (Issue #102)
+  - `-b` / `--batch` flag for single Ctrl+C termination
+  - Compatible with pdsh `-b` option
+  - Useful for non-interactive scripts and CI/CD pipelines
+
+- **--exclude Option** (Issue #100)
+  - `--exclude` / `-x` for host exclusion
+  - Supports wildcards, glob patterns, and hostlist expressions
+  - Applied after `--filter` option
+
+- **--no-prefix Option** (Issue #101)
+  - `-N` / `--no-prefix` for disabling hostname prefix in output
+  - Compatible with pdsh `-N` option
+  - Works with both stream mode and file mode
+
+- **--connect-timeout Option** (PR #103)
+  - Separate connection timeout from command execution timeout
+  - Default: 30 seconds, minimum: 1 second
+  - Useful for fast failure detection on unreachable hosts
+
+### Changed
+- **CI Workflow Simplification**
+  - Merged multiple jobs into single pipeline for efficiency
+
+### Fixed
+- **Environment Variable Test Race Conditions**
+  - Added `#[serial]` attribute to env var tests to prevent race conditions
+  - Tests now run sequentially when accessing shared environment state
+
+- **Connect Timeout Propagation**
+  - Fixed connect_timeout not being propagated through all SSH connection paths
+
+### Documentation
+- **Architecture Restructure** (Issue #109)
+  - Restructured ARCHITECTURE.md into modular documentation
+  - Removed residual dates and fixed incomplete sentences
+
+- **pdsh Compatibility Documentation** (Issue #110)
+  - Added comprehensive pdsh migration guide (docs/pdsh-migration.md)
+  - Added pdsh options reference (docs/pdsh-options.md)
+  - Added pdsh usage examples (docs/pdsh-examples.md)
+  - Added installation scripts for pdsh symlink setup
+
 ## [1.4.2] - 2025-12-16
 
 ### Fixed
@@ -513,6 +595,7 @@ None
 - russh library for native SSH implementation
 - Cross-platform support (Linux and macOS)
 
+[1.5.0-rc1]: https://github.com/lablup/bssh/compare/v1.4.2...v1.5.0rc1
 [1.4.2]: https://github.com/lablup/bssh/compare/v1.4.1...v1.4.2
 [1.4.1]: https://github.com/lablup/bssh/compare/v1.4.0...v1.4.1
 [1.4.0]: https://github.com/lablup/bssh/compare/v1.3.0...v1.4.0

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "bssh"
-version = "1.4.2"
+version = "1.5.0-rc1"
 authors = ["Jeongkyu Shin <inureyes@gmail.com>"]
 description = "Parallel SSH command execution tool for cluster management"
 license = "Apache-2.0"
@@ -43,7 +43,7 @@ regex = "1.12.2"
 lazy_static = "1.5"
 ctrlc = "3.5.1"
 signal-hook = "0.3.18"
-nix = { version = "0.29", features = ["poll"] }
+nix = { version = "0.30", features = ["poll"] }
 atty = "0.2.14"
 arrayvec = "0.7.6"
 smallvec = "1.15.1"

Cargo.toml

@@ -1371,6 +1371,7 @@ See the [LICENSE](./LICENSE) file for details.
 ## Changelog
 
 ### Recent Updates
+- **v1.5.0rc1 (2025/12/17):** Add pdsh compatibility mode with -w/-x/-f/-N/-b/-k/-q options, pdsh-style hostlist expressions (node[1-5], rack[1-2]-node[1-3]), in-TUI log panel, --connect-timeout option, --fail-fast/-k and --batch/-b flags
 - **v1.4.2 (2025/12/16):** Fix terminal escape sequence responses displayed on first prompt when starting tmux, fix paste not working in PTY sessions, bump dependencies
 - **v1.4.1 (2025/12/16):** Add comprehensive TUI/streaming tests (84 new tests), extend password fallback for SSH agent auth failures, add TUI module documentation
 - **v1.4.0 (2025/12/15):** Add --sudo-password flag for automated sudo authentication, password fallback with improved SSH debugging, developer tooling (githooks)

README.md

@@ -1,3 +1,53 @@
+bssh (1.5.0~rc1-1~jammy1) jammy; urgency=medium
+
+  * v1.5.0rc1
+  ### New Features
+  - **pdsh Compatibility Mode**: Full pdsh-style command line compatibility
+    - `-w hosts` option mapped to `-H hosts` for target host specification
+    - `-x hosts` option mapped to `--exclude hosts` for host exclusion
+    - `-f N` option mapped to `--parallel N` for fanout control
+    - `-l user` option for remote username
+    - `-N` option for disabling hostname prefix in output
+    - `-b` option for batch mode (single Ctrl+C termination)
+    - `-k` option for fail-fast mode (stop on first failure)
+    - `-q` query mode to show target hosts and exit
+  - **Hostlist Expressions**: pdsh-style range expansion support
+    - Range expansion: `node[1-5]` → node1, node2, node3, node4, node5
+    - Zero-padded ranges: `node[01-05]` → node01, node02, ...
+    - Comma-separated values: `node[1,3,5]` → node1, node3, node5
+    - Cartesian product: `rack[1-2]-node[1-3]` → 6 hosts
+    - File input with `^/path/to/hostfile`
+  - **In-TUI Log Panel**: Toggle visibility with `l` key
+    - Color-coded by level (ERROR red, WARN yellow)
+    - Configurable buffer size via BSSH_TUI_LOG_MAX_ENTRIES
+  - **--connect-timeout Option**: Separate connection timeout from command timeout
+    - Default: 30 seconds, minimum: 1 second
+
+  ### Improvements
+  - CI workflow simplification by merging jobs into single pipeline
+
+  ### Bug Fixes
+  - Fixed #[serial] attribute for env var tests to prevent race conditions
+  - Fixed connect_timeout propagation through all SSH connection paths
+
+  ### CI/CD Improvements
+  - Simplified CI workflow by merging multiple jobs into single pipeline
+
+  ### Technical Details
+  - pdsh compatibility layer core infrastructure
+  - Comprehensive hostlist expression parser with cartesian product support
+
+  ### Dependencies
+  None
+
+  ### Breaking Changes
+  None
+
+  ### Known Issues
+  None
+
+ -- Jeongkyu Shin <inureyes@gmail.com>  Tue, 17 Dec 2025 00:00:00 +0900
+
 bssh (1.4.2-1~jammy1) jammy; urgency=medium
 
   * v1.4.2

debian/changelog

@@ -1,6 +1,6 @@
 .\" Manpage for bssh
 .\" Contact the maintainers to correct errors or typos.
-.TH BSSH 1 "December 2025" "v1.4.2" "bssh Manual"
+.TH BSSH 1 "December 2025" "v1.5.0rc1" "bssh Manual"
 
 .SH NAME
 bssh \- Broadcast SSH - SSH-compatible client with parallel execution capabilities