BeeBEEP 5.8.6 + Portable

Added "Enable visual notifications for chat window" option menu Settings - Notifications
Added "Change emoticon size in chat" option in menu Settings - Chat.
Fixed a bug in connection to prevent PING before HELLO message.
Fixed a bug on using Message History with CTRL+Up / CTRL+Down.
Fixed a bug on "Raise chat window on new message".
Fixed a bug that did not allow messages to be displayed correctly between the dark theme and the default one.
Emoticons will no longer be displayed larger than their maximum size.
Important private messages now open the chat window.
Added "EnableReceivingHelpMessages" option in beebeep.rc file.
Added global shortcut CTRL+SHIFT+1 for PANIC BUTTON and HELP REQUEST automatic message.

- New feature: almost all the options of file beebeep.ini can be used in file beebeep.rc also
- New feature: added "Use high resolution emoticons" option
- New feature: added ECDH key exchange to encryption protocol
- New feature: added "Auto save interval" for chat messages to prevent data loss
- New feature: added "Favored emoticons" as tab in emoticon list
- New feature: added Voice Message Player interface
- New dark theme added in the interface
- User icons in chat window can be clicked also if the user is offline
- Disabled by default the option to search users by a multicast datagram
- Suspend/sleep mode is now managed also in Linux systems.
- File paths will be recognized and made clickable in chat (it must be a single message).
- Added "KeepModificationDateOnFileTransferred" option in beebeep.ini (it is always enabled in BeeBOX)
- Added "AllowedFileExtensionsInFileTransfer" option in beebeep.rc
- Added "AllowOnlyHostAddressesFromHostsIni" option in file beebeep.rc
- Added "Clear recent emoticons" in menu option of the chat bar
- Added "ConnectionKeyExchangeMethod" option in beebeep.rc
- Added "AddNicknameToDataFolder" option in beebeep.rc
- Fixed known issue: BeeBEEP prevents the CTRL+ALT+B (or CMD+ALT+B on MacOSX) key sequence in other applications from working
- Fixed a bug in options "Disable create message" and "Disable edit groups"
- Fixed a visualization bug if you open an user VCARD near the side of your desktop
- Fixed a bug on Download folder when you copy BeeBEEP from a computer to another one
- Fixed security issue with command line argument -platformpluginpath

Как сложно полиции, при необходимости, прочесть переписку?

Как сложно полиции, при необходимости, прочесть переписку?

- New feature: voice messages (you can record your message and send it as file)
- New feature: file transfer pause/resume
- New feature: data compression with zlib
- Voice messages can be also sent to offline users like text messages
- Added "Quote selected text" option to context menu (right click) of the chat
- Added "CheckUserConnectedFromDatagramIp" option in beebeep.rc (to prevent multiple connections from the same user but different ip addresses)
- Added "Clear system messages" option in context menu (right click) of activity and chat windows
- Added "SkipLocalHardwareAddresses" in beebeep.rc to skip unesuful network interfaces
- The option "AllowMultipleInstances" can be disabled also in Terminal Server because it checks also user account
- The avatar icon size is also applied in member icons of the chat windows
- Added "On sending message" option in Settings - Chat menu for "one-time" message:
- Do nothing (default)
- Minimize chat window
- Close chat window
- Added "DisableDesktopSharing" option in beebeep.rc
- Added "DisableBeepInUserStatusBusy" option in beebeep.ini
- Added "EnableBeepInActiveWindow" option in beebeep.ini
- Added "UseUserFullName" option in beebeep.rc to show (if exists) user's full name instead of nickname
- Added "DisableEncryptedConnections" option in beebeep.rc
- Added "AllowNotEncryptedConnections" option in beebeep.rc (used with "DisableEncryptedConnections")
- Added "AllowEncryptedConnectionsAlso" option in beebeep.rc (used with "DisableEncryptedConnections")
- Added "BroadcastToLocalSubnet" option to send or not send the HELLO message to the local subnet twice when multicasting is active
- User first and last names, email and phone number are now saved to use it also if the user is offline
- Added "AppendHostNameToUserName" option in beebeep.rc
- Added "DisableConnectionSocketDataCompression" option in beebeep.rc

- "ChatSaveFileTransfers" and "ChatSaveSystemMessages" options added in Settings - Chat menu:
  if enabled history saves also these messages
- Disabled High DPI icons in windows (can be enabled with qt.conf file)
- Added new option in Settings - Chat - "Save maximum lines in chat":
  you can choose how many lines to save for every chat
- Added "Clear cache items after X days" option: default is 96 days
- Added new option in Settings - Chat - "Show only # messages" to avoid performance issue
- Added "Always download files into the folder with the user's name" option in menu Settings - File Transfer
- The names of users and chats that contain the characters < > will now be correctly displayed (do not abuse)
- Improved search for predefined folders in Unix environment
- First release of a debian package for amd64 systems (beta)
- Compiled with large file support in Linux
- Reorganization of the "Settings" menu:
  - "Sound", "System tray" and "on new message event" options are now grouped into the menu Settings - Notifications
  - "Workgroups" -> "Your workgroups" in "Network" menu
  - "Set your status to away automatically" is now in "User status" menu in the toolbar
  - added new Menu "Interface"
- Added "Show users in their workgroups" option in user list settings
- Added "Time left" column in File Transfer window
- Added "Add up to # files to the transfer queue" option in Settings - File Transfer menu

Ну вот я как раз в условиях, приближённых к обрисованным. Пытаюсь пробовать этот бибип вместо уже совсем старого ланталька. Но пока в связке виндовс-7 - 10-LTSC пчёлы друг друга не видят (((( По ip-адресам файлообмен-то наладить удалось (тоже не сразу вдруг).
А с чатом пока не прёт.

что такое произошло в 2018-ом году?

Removed option "On close minimize on tray" for MacOSX
Added more debug messages on user recognition
Added "Autoresponder" when user send messages in group where he is not member
Fixed bug: duplicate first message on chat window

Fixed bug: "Transfer completed" message is not showed in chat
File sharing window now save its geometry on close
Create message window now save its geometry on close
Added option "Enable maximize button"
Groups can be created also with just one member (and you)

Patched Qt 5.9.6: window state are not restored (save only geometry option added)
Prevent "user collision" from same IP address
Fixed "slow connection bug" at startup
Added option "Always open chat on new message"
Added option to remove members from group
Added option "AllowAddMembersToGroup" in beebeep.rc
Added option "AllowRemoveMembersFromGroup" in beebeep.rc
Added option "Reset geometry of all windows"
Fixed some GUI bugs
On new message the BeeBEEP main icon also blinks

Added "Create message" window to send one time message to many
Added default multicast group address 239.255.64.75
Added option "Use default multicast group address"
Added option "Show users on connection"

Fixed compatibility of window geometry and state with previous version
Fixed minor bug in save settings
Added option "Save window's geometry" on close

- Changed all the main user interface
- All the main options are now grouped in the Settings menu
- Added status description option in user list
- Added status tooltip on the user's avatar/icon
- Added a check and an alert on same nickname/account of the connecting users
- Added "DisablePrivateChats" option on beebeep.rc file
- Added "DisableFileSharing" option on beebeep.rc file
- Chats are now always opened in separate window (single or multi)
- Fixed bug on leave a group chat
- Removed game plugin interface
- Added Workgroups interface in Settings/Users menu
- Users can be also recognized by their hash
- Change local user option added in Settings/OnConnection menu
- Message are now sent with UTC timestamp and converted to local time when received
- Fixed save of the dictionary selected
- Hunspell library updated to version 1.6.1
- Added option to select custom icons and emoticons
- Automatic disconnection on system in sleep mode and connection on system wake up (only for windows and macosx)

- The emoticon icon is now showed in detached chat (bug fixed)
- Added BUZZ for the private chats
- Chat messages are now saved on disconnection
- Fixed a bug in option "HideMainToolbar"
- Broadcast processes are now simplified and optimized (some options are now obsolete, see BEEHELP.txt)
- The file transferred via chat are now showed only in the right chat window
- Preserve last modification timestamp of the transferred files
- The message "User is writing" is now shown in the right chat window if it is visible
- "Signature" option added in beebeep.rc file
- "Open folder" link (shown after a file transferred) also highlight the selected file in the folder (only for windows and macosx)
- "UseOnlyTextEmoticons" option added in beebeep.rc file
- Fixed a bug on smart selection of the data folder (now if the application folder is not writeable, BeeBEEP save its data to UserAppData folder)
- Users can be sorted in ascending or descending order, by name, by status, by unread messages and by priority (default)
- A "new message notification" is shown also when a new file is received from a user
- Fixed a bug in emoticon parsing
- Hive protocol optimized
- Fixed a bug in opening url with diacritic characters in path
- Preset Messages
- Added option to read a "beegroups.ini" file (beta)
- Added option to set layout in RTL mode (beta)

- Chat messages are now saved on disconnection
- Fixed a bug in option "HideMainToolbar"
- Broadcast processes are now simplified and optimized (some options are now obsolete, see BEEHELP.txt)
- The file transferred via chat are now showed only in the right chat window
- Preserve last modification timestamp of the transferred files
- The message "User is writing" is now shown in the right chat window if it is visible
- "Signature" option added in beebeep.rc file
- "Open folder" link (shown after a file transferred) also highlight the selected file in the folder (only for windows and macosx)
- "UseOnlyTextEmoticons" option added in beebeep.rc file
- Fixed a bug on smart selection of the data folder (now if the application folder is not writeable, BeeBEEP save its data to UserAppData folder)
- Users can be sorted in ascending or descending order, by name, by status, by unread messages and by priority (default)
- A "new message notification" is shown also when a new file is received from a user
- Fixed a bug in emoticon parsing
- Hive protocol optimized
- Fixed a bug in opening url with diacritic characters in path
- Preset Messages
- Added option to read a "beegroups.ini" file (beta)
- Added option to set layout in RTL mode (beta)

ЧЕВОТО

- ShareBox: new feature in beta (can share files like dropbox with all users connected)
- Added "Find text" and "Print" options in history (shortcut or right click)
- Fixed a bug in "Send offline messages"
- Added CopyMastro plugin support
- "Clear all read messages on closing chat window" option added
- "File notification on system tray" option added
- "StartMinimized" option added in beebeep.rc

- Added "UseHostnameForDefaultUsername" option. It can be enabled in beebeep.rc
- Updated nickname update also the name of the chat window
- Fixed a bug that broke the link when there is an exclamation symbol in it
- Fixed a bug in showing chat window when tray message is clicked
- Users can not be removed from group by the other members but they can leave the group if they want to (due serverless)
- Windows UNC path are parsed and now it can be clickable
- "Open selected text as url" option added in chat chat window (right click on selected text)
- "Overwrite existings file" and "Ask me" option added
- Fixed a bug in icon of default chat when a new message is arrived
- Fixed a bug in alert beep when a new message is arrived
- Fixed a bug on stay on top (windows)
- Added "HideMainToolbar", "HideChatToolbar", "HideUsersPanel" and "HideOtherPanels" options. They can be enabled in beebeep.rc
- Added "UseEasyConnection" option to beebeep.rc
- Added "DisableFileTransfer" option in beebeep.rc
- Added "DisableSendMessage" option in beebeep.rc
- Added global shortcut for "Show all chat windows" (default CTRL+ALT+B)
- Fixed a bug in linkify parser (in some case   is added to link)