What's Changed

• add optional TCP MD5 Signature RFC2385 by @senid231 in #25
• add JRPC::Transport::Test to use in tests by @senid231 in #26
• debug log sent/received payload by @senid231 in #27

Full Changelog: v2.0.0...v2.1.0

Contributors

• @senid231

Full rewrite. JRPC 2.0 is not API-compatible with 1.x.

New

• JRPC::SharedClient — one shared instance, one connection, serving many caller
  threads and/or fibers. Owns a dedicated transport thread that multiplexes
  responses by id. Supports Puma threads, rage-rb/Falcon fibers, and mixed
  thread/fiber callers. Fiber callers require a spec-compliant Fiber.scheduler.
  (Internally drafted as ThreadQueueClient; never shipped under that name.)
• JRPC::SimpleClient — single-threaded client, the functional replacement for
  the old TcpClient.
• concurrent-ruby (~> 1.2) added as a runtime dependency (backs the shared
  client's result futures).
• logger added as an explicit runtime dependency (no longer guaranteed bundled
  on Ruby 3.5+).

Removed / breaking

• JRPC::TcpClient removed — use JRPC::SimpleClient.
• JRPC::BaseClient removed, including the BaseClient.connect block helper.
• All top-level error constants moved under JRPC::Errors::*.
• method_missing magic removed — pass the full method name as a String or Symbol.
• invoke_request / invoke_notification removed.
• perform_request removed — use request and notification.
• namespace: option removed.
• Umbrella timeout: option removed — use read_timeout / write_timeout /
  connect_timeout (SimpleClient), or ttl: (SharedClient).
• close_after_sent: renamed to autoclose:.
• connect_retry_count default changed from 10 to 0.
• Constructors no longer connect eagerly — the first call connects.
• Malformed responses now raise Errors::MalformedResponseError (a ServerError),
  not ClientError. In 1.x the missing-comma-terminator case raised ClientError.
• SimpleClient read/write/connect timeouts now raise Errors::Timeout, not
  ConnectionError.
• oj runtime dependency dropped — JRPC uses stdlib json. For Oj speed,
  require 'oj'; Oj.mimic_JSON yourself.
• netstring is no longer a dependency — framing is owned in-tree by the transport.
• required_ruby_version set to >= 3.3 (the floor where the
  ConditionVariable ↔ Fiber.scheduler cooperation that fiber callers depend on
  is verified).
• bin/jrpc and bin/jrpc-shell rewritten on top of SimpleClient; flag/usage
  changes (see README.md and jrpc --help).

Full Changelog: v1.1.8...v2.0.0

• handling FIN signal for TCP socket didww/jrpc#19
• add gem executables didww/jrpc#19

• connect to a socket in non block mode (fix connection timeout issues)

• Handle EOF on TCP socket #read

BugFix:

• close socket descriptor when clearing socket

• Fix Broken pipe error when connection terminated unexpectedly #11

• fix error rescue in TcpClient initializer

• use own socket wrapper instead of Net::TcpClient
• fix bug when timeout does not handle correctly and client freezes for a long time

https://rubygems.org/gems/jrpc/versions/1.1.0

• add ability to send params as object (via #perform_request)
• deperecate #invoke_request and #invoke_notification methods
• add options for read_timeout, write_timeout, connect_timeout, connect_retry_count
• add optional override read/write timeouts per request
• optimize debug logger