Question: A small small twin-engine jet corporate aircraft was further developed and updated by what brand of Textron Aviation since 2014?

Context articles: Beechcraft
Textron Aviation
Airspeed Aviation
Air Partner
Textron AirLand Scorpion
Sukhoi Su-57
Hawker 400
PlaneSense
Scott C. Donnelly
Beechcraft T-6 Texan II

Beechcraft is a brand of Textron Aviation since 2014.
 Originally, it was a brand of Beech Aircraft Corporation, an American manufacturer of general aviation, commercial, and military aircraft, ranging from light single-engined aircraft to twin-engined turboprop transports, business jets, and military trainers.
 Beech later became a division of Raytheon and later Hawker Beechcraft before a bankruptcy sale turned its assets over to Textron (parent company of Beech's cross-town Wichita rival, Cessna Aircraft Company).
Textron Aviation is the general aviation business unit of the Textron group that was formed in March 2014 following the acquisition of Beech Holdings which included the Beechcraft and Hawker Aircraft businesses.
 The new business unit includes the Textron-owned Cessna.
 Textron Aviation sells Beechcraft and Cessna branded aircraft.
 While no longer selling new Hawker airplanes, Textron Aviation still supports the existing Hawker aircraft fleet through its service centers.
Airspeed Aviation was a small regional airline based in Abbotsford, British Columbia, Canada.
 The airline was in operation since 1986 and was sold to Orca Airways at Vancouver International Airport on February 27, 2009.
 They specialized in flying between Abbotsford International Airport and Victoria International Airport, with twin-engine Cessna corporate aircraft.
Air Partner Plc is a global aviation services group.
 The Group is structured into four reporting divisions: Commercial Jet air charter, Private Jet Charter, air freight and Baines Simmons.
 The Commercial Jet division charters large airliners to move groups of any size.
 They also provide remarketing programmes for all types of commercial and corporate aircraft.
 Air Partner is headquartered alongside Gatwick airport in the United Kingdom.
 Air Partner operates 24/7 year-round and has 20 offices across Europe, North America, the Middle East and Asia.
 The company is publicly listed on the London Stock Exchange as LSE: [ AIR] , and is also ISO 9001:2008 compliant for commercial airline and private jet solutions worldwide.
The Textron AirLand Scorpion is an American jet aircraft proposed for sale to perform light attack and Intelligence, surveillance and reconnaissance (ISR) duties.
 It is being developed by Textron AirLand, a joint venture between Textron and AirLand Enterprises.
 A prototype was secretly constructed by Cessna at their Wichita, Kansas facility between April 2012 and September 2013 and first flown on 12 December 2013.
The Sukhoi Su-57 (Russian: Сухой Су-57 ) is the designation intended for a stealth, single-seat, twin-engine jet multirole fighter aircraft designed for air superiority and attack operations.
 The aircraft is the product of the PAK FA (Russian: ПАК ФА , Russian: Перспективный авиационный комплекс фронтовой авиации , "Perspektivny Aviatsionny Kompleks Frontovoy Aviatsii", literally "Prospective Airborne Complex of Frontline Aviation"), a fifth-generation fighter programme of the Russian Air Force.
 Sukhoi's internal name for the aircraft is T-50.
 The Su-57 will be the first aircraft in Russian military service to use stealth technology.
 The fighter is planned to have supercruise, stealth, supermaneuverability and advanced avionics to overcome the prior generation fighter aircraft as well as ground and maritime defences.
The Hawker 400 is a small twin-engine jet corporate aircraft.
 Initially designed and built by Mitsubishi, it has been further developed and updated by the Beech Aircraft Company, now part of Hawker Beechcraft.
PlaneSense is a fractional aircraft ownership program managed by PlaneSense, Inc. and based in Portsmouth, New Hampshire, United States.
 As of the beginning of 2016, they manage a civilian fleet of 36 total program aircraft, made up of thirty-four Pilatus PC-12 aircraft and 2 Nextant 400 XTi twin-engine jet aircraft.
 More Nextant 400XTi jets are also on order, and six Pilatus PC-24 twin-engine jets are scheduled to be delivered between the years 2017 and 2020.
 The PlaneSense fractional program provides private air transportation, primarily within the United States, Canada, Mexico, The Bahamas, and the islands of the Caribbean.
 PlaneSense guarantees departure times as soon as 8 hours after a flight request, depending on the size of the aircraft share owned for domestic flights on non-peak days.
 PlaneSense, inc. is not, itself, an air charter provider or commercial air carrier, but charter flights can be arranged through its sister company, Cobalt Air.
Scott C. Donnelly (born 1961) is the CEO of Textron.
 Before joining Textron, Donnelly was the CEO for General Electric Aviation, a producer of jet engines for commercial and military aircraft.
 Donnelly also served as the Senior Vice President of General Electric Global Research, one of the world's largest industrial research organizations and held various management positions since joining General Electric in 1989.
The Beechcraft T-6 Texan II is a single-engine turboprop aircraft built by the Raytheon Aircraft Company (which became Hawker Beechcraft and later Beechcraft Defense Company, and was bought by Textron Aviation in 2014).
 A trainer aircraft based on the Pilatus PC-9, the T-6 has replaced the Air Force's Cessna T-37B Tweet and the Navy's T-34C Turbo Mentor.
 The T-6A is used by the United States Air Force for basic pilot training and Combat Systems Officer (CSO) training and by the United States Navy and United States Marine Corps for primary Naval Aviator training as well as primary and intermediate Naval Flight Officer (NFO) training.
 The T-6A is also used as a basic trainer by the Royal Canadian Air Force (CT-156 Harvard II), the Greek Air Force, the Israeli Air Force ("Efroni"), and the Iraqi Air Force.
 The T-6B is the primary trainer for U.S. student naval aviators.
 The T-6C is used for training by the Mexican Air Force, Royal Air Force, Royal Moroccan Air Force, and the Royal New Zealand Air Force.