Release Note 
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08/15/15
	Evaluation Script v1.2.2 : iccad2015_evaluate_solution_0815.tar.gz
		1. Added handling of .ops for the timer's internal netlist update (update_timer_FF2LCB_association() in evaluation.cpp)
		2. Added incremental spef writer (write_incremental_spef() in evaluation.cpp)  
		   You can use the same function for incremental timing query, along with modified net specific
		   (i) update_pinlocs(), (ii) build_steiner(), (iii) slice_longwires(), and (iv) timer.read_spef().
		   Keep in mind that once after timer.splice_driver() invocation, you need to write 
		   PI_drv:o instead in positions of PI pins, whenever you write .spef for the modified nets, 

08/11/15
	UI-Timer v2.2.2
		1. Proper handling of critical paths originated from PI drivers

07/01/15
	Evaluation Script v1.2.1 : iccad2015_evaluate_solution_0701.tar.gz
		1. Bug fix in PI_driver-to-PI connections with use of new timer APIs (evaluation.cpp)
	UI-Timer v2.2.1
		1. Add method splice_driver for evaluation purpose (Do not use it for incremental timing evaluation)

06/26/15
	Evaluation Script v1.2.0 : iccad2015_evaluate_solution_0626.tar.gz
		1. Bug fix in PI_driver-to-PI connections with use of new timer APIs (evaluation.cpp)
		2. Load cap writing in .spef, which was previously written in .timing (evaluation.cpp)
	UI-Timer v2.2
		1. Bug fix in reading missing section for nets defined in spef file
		2. Enable the lazy evaluation for TNS/WNS update
		3. Add methods set_at/set_slew for runtime assertions for PI-drivers

06/10/15
	Evaluation Script v1.1.3 : iccad2015_evaluate_solution_0610.tar.gz
		1. ICCAD15.parm is updated - MAX_LCB_FANOUTS = 50 (from 40)
		2. Bug fix in FF-to-LCB connection validity check (line 2175 in parser_helper.cpp)

06/08/15
	Evaluation Script v1.1.2 : iccad2015_evaluate_solution_0608.tar.gz
		1. generation of *_critical.plt, *_critical.log has been fixed. No slack results change. (line 130 in evaluate.cpp)

06/03/15
	Evaluation Script v1.1.1 : iccad2015_evaluate_solution_0603.tar.gz
		1. ICCAD15.parm is updated
	UI-Timer v2.1.1 : included in the evaluation script
		1. Fixed the propagation issue of dangling pins

06/02/15 
	Evaluation Script v1.1.0 : iccad2015_evaluate_solution_0602.tar.gz
		1. handling of non-rectangular shapes (keyword=OBS) for accurate density and legality check (parser_helper.cpp, check_legality.cpp, evaluate.cpp)
		2. excluding FF'clk port when calculating WNS/TNS (evaluate.cpp)
		3. writing spef in the correct units (CAP_SCALE/RES_SCALE in evaluate.cpp)
		4. example for printing out critical path/plot (evaluate.cpp)
		5. taking *_Early.lib *_Late.lib as arguments from *.iccad2015 (parser_helper.cpp)

	UI-Timer v2.1.0 : included in the evaluation script
		1. Nodes will be levelized first during the initialization of timer for speed purpose  
		2. OMP critical section is added to the function update_spef so as to avoid race condition (segfault) 
		3. Temporary handling of dangling pins

05/08/15
	Evaluation Script v1.0 : iccad2015_evaluate_solution_0508.tar.gz
		1. Initial release 
04/08/15
	UI-Timer v2.0
		1. Initial release
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