diff --git a/README.md b/README.md
index 1c029ea..08252de 100644
--- a/README.md
+++ b/README.md
@@ -80,6 +80,9 @@ M.upgrade(space, {
         ttr    = true|number,    -- requires `runat` field
         -- Time To Release. Task is returned into [R]eady unless processed (turned to ack|release from taken) within time
         -- if number, then with default ttl, otherwise only if set during take
+
+        not_check_session = true, -- requires 'ttr'
+        -- if true, not check session on ack/bury/release and not release task on disconnect
     },
     -- Set tubes for which statistics collector will be enabled
     tube_stats = { 'tube-1', 'tube-2' },
diff --git a/test/network_test.lua b/test/network_test.lua
index 19d7506..5f731f8 100644
--- a/test/network_test.lua
+++ b/test/network_test.lua
@@ -87,3 +87,147 @@ function g.test_untake()
 
 	tt:close()
 end
+
+function g.test_not_untake_with_not_check_session()
+	local queue = box.schema.space.create('queue', { if_not_exists = true }) --[[@as xqueue.space]]
+	queue:format({
+		{ name = 'id',      type = 'unsigned' },
+		{ name = 'status',  type = 'string'   },
+		{ name = 'runat',   type = 'number'   },
+		{ name = 'payload', type = 'any'      },
+	})
+	local F = { id = 1, status = 2, runat = 3, payload = 4 }
+
+	queue:create_index('primary', { parts = {'id'} })
+	queue:create_index('status', { parts = {'status', 'id'} })
+	queue:create_index('runat', { parts = {'runat', 'id'} })
+
+	xqueue.upgrade(queue, {
+		features = {
+			id = 'time64',
+			delayed = true,
+			retval = 'table',
+			not_check_session = true,
+			ttr = 60,
+		},
+		fields = {
+			status = 'status',
+			runat = 'runat',
+		},
+	})
+
+	local tt = netbox.connect('127.0.0.1:3301', { wait_connected = true })
+	t.assert(tt:ping(), "connected to self")
+
+	local task = queue:put({ payload = { time = clock.time() } })
+	t.assert(task, ":put() has been inserted task")
+
+	local awaiter_fin = fiber.channel()
+
+	fiber.create(function()
+		local ret, is_processed = queue:wait(task, 3)
+		t.assert_equals(ret.id, task.id, "Task has been awaited")
+		t.assert_equals(is_processed, true, "Task has been processed by the consumer")
+		t.assert(awaiter_fin:put({ ret, is_processed }), "awaiter results were measured")
+	end)
+
+	local taken = tt:call('box.space.queue:take', {1}, { timeout = 1 })
+	t.assert(taken, ":take() returned task via the network")
+	t.assert_equals(task.id, taken.id, "retutned the same task")
+	t.assert(box.space.queue.xq.taken, nil, "taken table is empty")
+	t.assert(box.space.queue.xq.bysid, nil, "bysid table is empty")
+
+	-- not untake on close connection
+	tt:close()
+	fiber.sleep(1)
+
+	t.assert_equals(queue:get({ task.id }).status, 'T', "task still in T status")
+
+	tt = netbox.connect('127.0.0.1:3301', { wait_connected = true })
+
+	local processed_at = clock.time()
+	local acked = tt:call('box.space.queue:ack', {taken, { update = {{'=', F.payload, { processed_at = processed_at }}} }}, {timeout = 1})
+	t.assert_equals(acked[1], taken.id, ":ack() returned taken but completed task")
+
+	local awaiter_res = awaiter_fin:get()
+	t.assert_equals(awaiter_res[1].id, acked[1], "awaiter saw acknowledged task")
+	t.assert_equals(awaiter_res[2], true, "awaiter saw task as processed")
+
+	tt:close()
+end
+
+function g.test_untake_with_not_check_session_by_ttr()
+	local queue = box.schema.space.create('queue', { if_not_exists = true }) --[[@as xqueue.space]]
+	queue:format({
+		{ name = 'id',      type = 'unsigned' },
+		{ name = 'status',  type = 'string'   },
+		{ name = 'runat',   type = 'number'   },
+		{ name = 'payload', type = 'any'      },
+	})
+	local F = { id = 1, status = 2, runat = 3, payload = 4 }
+
+	queue:create_index('primary', { parts = {'id'} })
+	queue:create_index('status', { parts = {'status', 'id'} })
+	queue:create_index('runat', { parts = {'runat', 'id'} })
+
+	xqueue.upgrade(queue, {
+		features = {
+			id = 'time64',
+			delayed = true,
+			retval = 'table',
+			not_check_session = true,
+			ttr = 5,
+		},
+		fields = {
+			status = 'status',
+			runat = 'runat',
+		},
+	})
+
+	local tt = netbox.connect('127.0.0.1:3301', { wait_connected = true })
+	t.assert(tt:ping(), "connected to self")
+
+	local task = queue:put({ payload = { time = clock.time() } })
+	t.assert(task, ":put() has been inserted task")
+
+	local awaiter_fin = fiber.channel()
+
+	local taken = tt:call('box.space.queue:take', {1}, { timeout = 1 })
+	t.assert(taken, ":take() returned task via the network")
+	t.assert_equals(task.id, taken.id, "retutned the same task")
+	t.assert(queue.xq.taken, nil, "taken table is empty")
+	t.assert(queue.xq.bysid, nil, "bysid table is empty")
+
+	fiber.create(function()
+		local ret, is_processed = queue:wait(task, 7)
+		t.assert_equals(ret.id, task.id, "Task has been awaited")
+		t.assert_equals(is_processed, true, "Task has been processed by the consumer")
+		t.assert(awaiter_fin:put({ ret, is_processed }), "awaiter results were measured")
+	end)
+
+	-- not untake on close connection
+	tt:close()
+	t.assert_equals(queue:get({ task.id }).status, 'T', "task still in T status")
+
+	-- untake by ttr
+	fiber.sleep(5)
+	t.assert_equals(queue:get({ task.id }).status, 'R', "task was returned to R status")
+
+	tt = netbox.connect('127.0.0.1:3301', { wait_connected = true })
+
+	taken = tt:call('box.space.queue:take', {1}, { timeout = 1 })
+	t.assert(taken, ":take() returned task via the network (2nd)")
+	t.assert_equals(task.id, taken.id, "retutned the same task (2nd)")
+	t.assert(queue.xq.taken, nil, "taken table is empty")
+	t.assert(queue.xq.bysid, nil, "bysid table is empty")
+
+	local processed_at = clock.time()
+	local acked = tt:call('box.space.queue:ack', {taken, { update = {{'=', F.payload, { processed_at = processed_at }}} }}, {timeout = 1})
+	t.assert_equals(acked[1], taken.id, ":ack() returned taken but completed task")
+
+	local awaiter_res = awaiter_fin:get()
+	t.assert_equals(awaiter_res[1].id, acked[1], "awaiter saw acknowledged task")
+	t.assert_equals(awaiter_res[2], true, "awaiter saw task as processed")
+
+	tt:close()
+end
diff --git a/test/replicaset_test.lua b/test/replicaset_test.lua
index 90fd564..cedf8ab 100644
--- a/test/replicaset_test.lua
+++ b/test/replicaset_test.lua
@@ -189,6 +189,29 @@ function g.test_start(test)
 		retval = 'table',
 	} --[[@as xqueue.upgrade.options]]
 
+	local queue_not_check_session = {
+		name = 'queue_not_check_session',
+		format = {
+			{ name = 'id',      type = 'string' },
+			{ name = 'status',  type = 'string' },
+			{ name = 'runat',   type = 'number' },
+			{ name = 'payload', type = 'any'    },
+		},
+		features = {
+			id = 'uuid',
+			keep = false,
+			delayed = true,
+			not_check_session = true,
+			ttr = 60,
+		},
+		fields = {
+			id = 'id',
+			status = 'status',
+			runat = 'runat',
+		},
+		retval = 'table',
+	} --[[@as xqueue.upgrade.options]]
+
 	local had_error
 	local await = {}
 	for _, srv in pairs(replica_set.servers) do
@@ -200,6 +223,12 @@ function g.test_start(test)
 				had_error = err
 				log.error("%s: %s", srv.alias, err)
 			end
+
+			local ok, err = pcall(srv.exec, srv, setup_queue, {queue_not_check_session}, { timeout = 20 })
+			if not ok then
+				had_error = err
+				log.error("%s: %s", srv.alias, err)
+			end
 		end)
 		table.insert(await, fib)
 	end
@@ -214,6 +243,13 @@ function g.test_start(test)
 	local task = rw:call('box.space.simpleq:put', {{payload = {cookie = cookie}}, { delay = 5 } })
 	t.assert(task, "task was returned")
 
+	local task_not_check_session = rw:call('box.space.queue_not_check_session:put', {{payload = {}} })
+	t.assert(task_not_check_session, "task was returned")
+
+	local taken = rw:call('box.space.queue_not_check_session:take', { 1 }, { timeout = 1 })
+	t.assert(taken, ":take() returned task from master")
+	t.assert_equals(task_not_check_session.id, taken.id, "returned the same task")
+
 	local SWITCH_TIMEOUT = 10
 
 	if params.name == 'raft' then
@@ -274,8 +310,24 @@ function g.test_start(test)
 		t.assert_equals(trw.alias, rw.alias, "after rw-switch luatest succesfully derived new leader")
 	end
 
+	local awaiter_fin = fiber.channel()
+
+	fiber.create(function()
+		local ret, is_processed
+		ret, is_processed = rw:call('box.space.queue_not_check_session:wait', { task_not_check_session, 1 }, { timeout = 1 })
+		t.assert_equals(ret.id, task_not_check_session.id, "Task has been awaited")
+		t.assert_equals(is_processed, true, "Task has been processed by the consumer")
+		t.assert(awaiter_fin:put({ ret, is_processed }), "awaiter results were measured")
+	end)
+
+	local acked = rw:call('box.space.queue_not_check_session:ack', { taken }, { timeout = 1 })
+	t.assert_equals(acked[1], taken.id, ":ack() returned taken but completed task")
+
+	local awaiter_res = awaiter_fin:get()
+	t.assert_equals(awaiter_res[1].id, acked[1], "awaiter saw acknowledged task")
+	t.assert_equals(awaiter_res[2], true, "awaiter saw task as processed")
+
 	local task = rw:call('box.space.simpleq:take', { 5 }, { timeout = 6 })
 	t.assert(task, "delayed task has been succesfully taken from new leader")
 	t.assert_equals(task.payload.cookie, cookie, "task.cookie is valid")
-
 end
diff --git a/xqueue.lua b/xqueue.lua
index c3c803e..fc28b18 100644
--- a/xqueue.lua
+++ b/xqueue.lua
@@ -124,6 +124,9 @@ Interface:
 				-- if number, then with default ttl, otherwise only if set during put/release
 			ttr    = true|number,    -- requires `runat` field
 				-- if number, then with default ttl, otherwise only if set
+
+			not_check_session = true, -- if true, not check session on ack/bury/release and not release task on disconnect
+				-- requires 'ttr'
 		},
 	})
 
@@ -245,6 +248,7 @@ local methods = {}
 ---@field ttr boolean|number
 ---@field ttl_default number?
 ---@field ttr_default number?
+---@field not_check_session boolean
 
 ---@class xq:table
 ---@field NEVER integer (Default: 0)
@@ -304,6 +308,7 @@ local methods = {}
 ---Requires runat field and index.
 ---@field ttr? boolean|number should xqueue allow Time-To-Release on tasks. When specified with number, this value used for ttl_default.
 ---Requires runat field and index.
+---@field not_check_session? boolean should xqueue not check session. Requires enabled ttr feature.
 
 ---@class xqueue.upgrade.options
 ---@field format? boxSpaceFormat
@@ -745,6 +750,28 @@ function M.upgrade(space,opts,depth)
 		features.ttr = false
 	end
 
+	if opts.features.not_check_session then
+		-- feature not_check_session require ttr because in this case
+		-- task isn't released on disconnect so to prevent the task from being frozen in the queue we need ttr
+		if not features.ttr then
+			error(string.format("feature not_check_session requires enabled ttr" ),2+depth)
+		end
+
+		features.not_check_session = true
+
+		setmetatable(self.bysid, {
+			__serialize = 'map',
+			__newindex = function(_, _, _) end,
+			__index = function(_, _) return {} end,
+		})
+		setmetatable(self.taken, {
+			__serialize = 'map',
+			__newindex = function(_, _, _) end,
+		})
+	else
+		features.not_check_session = false
+	end
+
 	if fields.tube then
 		features.tube = true
 	end
@@ -865,7 +892,7 @@ function M.upgrade(space,opts,depth)
 						if not r then
 							log.error("Worker for {%s} has error: %s", key, e)
 						else
-							if xq.taken[ key ] then
+							if xq.taken[ key ] or self.features.not_check_session then
 								space:ack(task)
 							end
 						end
@@ -1000,6 +1027,10 @@ function M.upgrade(space,opts,depth)
 		if not t then
 			error(string.format( "Task {%s} was not found", key ),2)
 		end
+		-- if not need to check session that return task
+		if self.features.not_check_session then
+			return t
+		end
 		if not self.taken[key] then
 			error(string.format( "Task %s not taken by any", key ),2)
 		end
@@ -1017,9 +1048,9 @@ function M.upgrade(space,opts,depth)
 			if self.bysid[ sid ] then
 				self.bysid[ sid ][ key ] = nil
 			else
-				log.error( "Task {%s} marked as taken by sid=%s but bysid is null", key, sid)
+				log.error("Task {%s} marked as taken by sid=%s but bysid is null", key, sid)
 			end
-		else
+		elseif not self.features.not_check_session then
 			log.error( "Task {%s} not marked as taken, untake by sid=%s", key, box.session.id() )
 		end
 
@@ -1154,11 +1185,17 @@ function M.upgrade(space,opts,depth)
 					local t = space:get(realkey)
 					if t then
 						if t[ self.fields.status ] == 'T' then
-							self:wakeup(space:update({ realkey }, {
-								{ '=',self.fields.status,'R' },
-								self.have_runat and { '=', self.fields.runat, self.NEVER } or nil
-							}))
-							log.info("Rst: T->R {%s}", realkey )
+							-- if not check session we doesn't release task
+							-- it can be ack/bury/release from another connection
+							if self.features.not_check_session then
+								log.info("Rst: task %s taken by session %s not released", realkey, sid)
+							else
+								self:wakeup(space:update({ realkey }, {
+									{ '=',self.fields.status,'R' },
+									self.have_runat and { '=', self.fields.runat, self.NEVER } or nil
+								}))
+								log.info("Rst: T->R {%s}", realkey )
+							end
 						else
 							log.error( "Rst: %s->? {%s}: wrong status", t[self.fields.status], realkey )
 						end